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Although dried roots in well-watered orchids are caused primarily by the deficiency of a chemical compound called Vitadex, researchers believe that the presence of Ditalex in the soil could also be a cause of the same. Traces of Ditalex were found in 70 percent of the orchids with dried roots, but in only 10 percent of the orchids without dried roots. Ditalex was accidentally added to a few pesticides last year and researchers hypothesize that these affected orchids are from farms that once used this particular batch of pesticides.
Which of the following, if true, most strongly supports the researchers’ hypothesis?
  • a)
    Regulations in the pesticides manufacturing industry have now banned the usage of Ditalex.
  • b)
    Recently tested samples of the pesticides used last year have revealed traces of Ditalex.
  • c)
    On farms where the infected pesticide was never used, the samples of orchids that had dried roots did not contain Ditalex.
  • d)
    In some cases, orchids exposed to Ditalex are not affected by dried roots.
  • e)
    There is no direct proof that dried roots are primarily caused by Vitadex.
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
Although dried roots in well-watered orchids are caused primarily by t...
Argument Analysis
Pre-Thinking
Conclusion Clarification
The argument contains 2 independent conclusions referred to as “Researchers’ Belief” and “Researchers’ hypothesis”.  However, if you refer to the question stem, it says “Which of the following, if true, most strongly supports the researchers’ hypothesis?”. Therefore, the question is referring to the “Researchers’ hypothesis” only.
Pre-Thinking Approach
Let’s see how we can increase the belief in the conclusion.  To do so, we will look at the logical structure, focusing on linkage 1 and the conclusion (researchers’ hypothesis). 
When we look at the logical structure, we see that the hypothesis talks about a possible cause of Ditalex found in some orchids.  Here the possible cause refers to the usage of Ditalex containing pesticides in the farms that grew the orchids.
Linkage#1
Strengthener – A reasoning that tells that: Some other factor did not lead to Ditalex in these orchids. (alternate cause)
  • For example, preliminary test reveal that ABC chemical, which reacts with certain chemicals in the soil to form Ditalex, was not present in the areas where the orchids containing Ditalex were found.
Strengthener – Evidence that shows: Ditalex was not found in farms that did not use the batch of pesticides that contained Ditalex. (no cause, then no effect)
  • For example, no complaint was received regarding Ditalex in orchids that were grown in other farms.
With this understanding, let us evaluate the option statements.
Answer Choices
A
Regulations in the pesticides manufacturing industry have now banned the usage of Ditalex.
Incorrect - Irrelevant
We already know that Ditalex was accidentally used in pesticides in a particular batch. All we are trying to validate is – whether the same batch of pesticides led to Ditalex in certain orchids that were grown in the farms that used the pesticide.
B
Recently tested samples of the pesticides used last year have revealed traces of Ditalex.
Incorrect - no new information
This option does not introduce any new information since we already know that the batch of pesticides contained traces of Ditalex.
C
On farms where the infected pesticide was never used, the samples of orchids that had dried roots did not contain Ditalex.
Correct
It matches the second strengthener that we identified in the pre-thinking analysis
D
In some cases, orchids exposed to Ditalex are not affected by dried roots.
Incorrect - does not support the hypothesis
This option does not address the causal relationship that the hypothesis is trying to establish. 
E
There is no direct proof that dried roots are primarily caused by Vitadex.
Incorrect - Irrelevant
This option does not talk about the relationship that pesticides containing Ditalex used in farms led to Ditalex in orchids that grew there.
View all questions of this test
Most Upvoted Answer
Although dried roots in well-watered orchids are caused primarily by t...
Hypothesis: Orchids with dried roots may be affected by the presence of Ditalex in the soil, which was accidentally added to a batch of pesticides used on farms.

Supporting evidence:

a) Regulations in the pesticides manufacturing industry have now banned the usage of Ditalex. This information does not provide evidence that Ditalex was present in the pesticides used last year, which is the focus of the researcher's hypothesis. Therefore, this option does not support the hypothesis.

b) Recently tested samples of the pesticides used last year have revealed traces of Ditalex. This piece of evidence directly supports the hypothesis by indicating that Ditalex was present in the pesticides used last year, which may have affected the orchids on farms that used these pesticides.

c) On farms where the infected pesticide was never used, the samples of orchids that had dried roots did not contain Ditalex. This option directly supports the hypothesis by indicating that Ditalex was not found in orchids that were not exposed to the infected pesticide. This suggests that the presence of Ditalex in the soil may be a significant factor contributing to dried roots in orchids.

d) In some cases, orchids exposed to Ditalex are not affected by dried roots. This information does not provide evidence that supports or refutes the hypothesis. It simply suggests that other factors may also contribute to dried roots in orchids.

e) There is no direct proof that dried roots are primarily caused by Vitadex. This information does not support or refute the hypothesis. It simply indicates that Vitadex may not be the sole cause of dried roots in orchids.

Conclusion: Option c is the correct answer as it provides evidence that supports the hypothesis that the presence of Ditalex in the soil may be a significant factor contributing to dried roots in orchids.
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Although dried roots in well-watered orchids are caused primarily by the deficiency of a chemical compound called Vitadex, researchers believe that the presence of Ditalex in the soil could also be a cause of the same. Traces of Ditalex were found in 70 percent of the orchids with dried roots, but in only 10 percent of the orchids without dried roots. Ditalex was accidentally added to a few pesticides last year and researchers hypothesize that these affected orchids are from farms that once used this particular batch of pesticides.Which of the following, if true, most strongly supports the researchers’ hypothesis?a)Regulations in the pesticides manufacturing industry have now banned the usage of Ditalex.b)Recently tested samples of the pesticides used last year have revealed traces of Ditalex.c)On farms where the infected pesticide was never used, the samples of orchids that had dried roots did not contain Ditalex.d)In some cases, orchids exposed to Ditalex are not affected by dried roots.e)There is no direct proof that dried roots are primarily caused by Vitadex.Correct answer is option 'C'. Can you explain this answer?
Question Description
Although dried roots in well-watered orchids are caused primarily by the deficiency of a chemical compound called Vitadex, researchers believe that the presence of Ditalex in the soil could also be a cause of the same. Traces of Ditalex were found in 70 percent of the orchids with dried roots, but in only 10 percent of the orchids without dried roots. Ditalex was accidentally added to a few pesticides last year and researchers hypothesize that these affected orchids are from farms that once used this particular batch of pesticides.Which of the following, if true, most strongly supports the researchers’ hypothesis?a)Regulations in the pesticides manufacturing industry have now banned the usage of Ditalex.b)Recently tested samples of the pesticides used last year have revealed traces of Ditalex.c)On farms where the infected pesticide was never used, the samples of orchids that had dried roots did not contain Ditalex.d)In some cases, orchids exposed to Ditalex are not affected by dried roots.e)There is no direct proof that dried roots are primarily caused by Vitadex.Correct answer is option 'C'. Can you explain this answer? for GMAT 2024 is part of GMAT preparation. The Question and answers have been prepared according to the GMAT exam syllabus. Information about Although dried roots in well-watered orchids are caused primarily by the deficiency of a chemical compound called Vitadex, researchers believe that the presence of Ditalex in the soil could also be a cause of the same. Traces of Ditalex were found in 70 percent of the orchids with dried roots, but in only 10 percent of the orchids without dried roots. Ditalex was accidentally added to a few pesticides last year and researchers hypothesize that these affected orchids are from farms that once used this particular batch of pesticides.Which of the following, if true, most strongly supports the researchers’ hypothesis?a)Regulations in the pesticides manufacturing industry have now banned the usage of Ditalex.b)Recently tested samples of the pesticides used last year have revealed traces of Ditalex.c)On farms where the infected pesticide was never used, the samples of orchids that had dried roots did not contain Ditalex.d)In some cases, orchids exposed to Ditalex are not affected by dried roots.e)There is no direct proof that dried roots are primarily caused by Vitadex.Correct answer is option 'C'. Can you explain this answer? covers all topics & solutions for GMAT 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Although dried roots in well-watered orchids are caused primarily by the deficiency of a chemical compound called Vitadex, researchers believe that the presence of Ditalex in the soil could also be a cause of the same. Traces of Ditalex were found in 70 percent of the orchids with dried roots, but in only 10 percent of the orchids without dried roots. Ditalex was accidentally added to a few pesticides last year and researchers hypothesize that these affected orchids are from farms that once used this particular batch of pesticides.Which of the following, if true, most strongly supports the researchers’ hypothesis?a)Regulations in the pesticides manufacturing industry have now banned the usage of Ditalex.b)Recently tested samples of the pesticides used last year have revealed traces of Ditalex.c)On farms where the infected pesticide was never used, the samples of orchids that had dried roots did not contain Ditalex.d)In some cases, orchids exposed to Ditalex are not affected by dried roots.e)There is no direct proof that dried roots are primarily caused by Vitadex.Correct answer is option 'C'. Can you explain this answer?.
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Ditalex was accidentally added to a few pesticides last year and researchers hypothesize that these affected orchids are from farms that once used this particular batch of pesticides.Which of the following, if true, most strongly supports the researchers’ hypothesis?a)Regulations in the pesticides manufacturing industry have now banned the usage of Ditalex.b)Recently tested samples of the pesticides used last year have revealed traces of Ditalex.c)On farms where the infected pesticide was never used, the samples of orchids that had dried roots did not contain Ditalex.d)In some cases, orchids exposed to Ditalex are not affected by dried roots.e)There is no direct proof that dried roots are primarily caused by Vitadex.Correct answer is option 'C'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of Although dried roots in well-watered orchids are caused primarily by the deficiency of a chemical compound called Vitadex, researchers believe that the presence of Ditalex in the soil could also be a cause of the same. Traces of Ditalex were found in 70 percent of the orchids with dried roots, but in only 10 percent of the orchids without dried roots. Ditalex was accidentally added to a few pesticides last year and researchers hypothesize that these affected orchids are from farms that once used this particular batch of pesticides.Which of the following, if true, most strongly supports the researchers’ hypothesis?a)Regulations in the pesticides manufacturing industry have now banned the usage of Ditalex.b)Recently tested samples of the pesticides used last year have revealed traces of Ditalex.c)On farms where the infected pesticide was never used, the samples of orchids that had dried roots did not contain Ditalex.d)In some cases, orchids exposed to Ditalex are not affected by dried roots.e)There is no direct proof that dried roots are primarily caused by Vitadex.Correct answer is option 'C'. Can you explain this answer?, a detailed solution for Although dried roots in well-watered orchids are caused primarily by the deficiency of a chemical compound called Vitadex, researchers believe that the presence of Ditalex in the soil could also be a cause of the same. Traces of Ditalex were found in 70 percent of the orchids with dried roots, but in only 10 percent of the orchids without dried roots. Ditalex was accidentally added to a few pesticides last year and researchers hypothesize that these affected orchids are from farms that once used this particular batch of pesticides.Which of the following, if true, most strongly supports the researchers’ hypothesis?a)Regulations in the pesticides manufacturing industry have now banned the usage of Ditalex.b)Recently tested samples of the pesticides used last year have revealed traces of Ditalex.c)On farms where the infected pesticide was never used, the samples of orchids that had dried roots did not contain Ditalex.d)In some cases, orchids exposed to Ditalex are not affected by dried roots.e)There is no direct proof that dried roots are primarily caused by Vitadex.Correct answer is option 'C'. Can you explain this answer? has been provided alongside types of Although dried roots in well-watered orchids are caused primarily by the deficiency of a chemical compound called Vitadex, researchers believe that the presence of Ditalex in the soil could also be a cause of the same. Traces of Ditalex were found in 70 percent of the orchids with dried roots, but in only 10 percent of the orchids without dried roots. Ditalex was accidentally added to a few pesticides last year and researchers hypothesize that these affected orchids are from farms that once used this particular batch of pesticides.Which of the following, if true, most strongly supports the researchers’ hypothesis?a)Regulations in the pesticides manufacturing industry have now banned the usage of Ditalex.b)Recently tested samples of the pesticides used last year have revealed traces of Ditalex.c)On farms where the infected pesticide was never used, the samples of orchids that had dried roots did not contain Ditalex.d)In some cases, orchids exposed to Ditalex are not affected by dried roots.e)There is no direct proof that dried roots are primarily caused by Vitadex.Correct answer is option 'C'. Can you explain this answer? theory, EduRev gives you an ample number of questions to practice Although dried roots in well-watered orchids are caused primarily by the deficiency of a chemical compound called Vitadex, researchers believe that the presence of Ditalex in the soil could also be a cause of the same. Traces of Ditalex were found in 70 percent of the orchids with dried roots, but in only 10 percent of the orchids without dried roots. Ditalex was accidentally added to a few pesticides last year and researchers hypothesize that these affected orchids are from farms that once used this particular batch of pesticides.Which of the following, if true, most strongly supports the researchers’ hypothesis?a)Regulations in the pesticides manufacturing industry have now banned the usage of Ditalex.b)Recently tested samples of the pesticides used last year have revealed traces of Ditalex.c)On farms where the infected pesticide was never used, the samples of orchids that had dried roots did not contain Ditalex.d)In some cases, orchids exposed to Ditalex are not affected by dried roots.e)There is no direct proof that dried roots are primarily caused by Vitadex.Correct answer is option 'C'. Can you explain this answer? tests, examples and also practice GMAT tests.
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