In each question below a sentence with four words printed in bold type is given. These are numbered as (1 ), (2), (3) and (4). One of these four words printed in bold may he either wrongly spelt or inappropriate in the context of the sentence. Find out the word which is wrongly spelt or inappropriate, if any. The number of that word is your answer. If all the words printed in bold are correctly spelt and also appropriate in the context of the sentence, mark (5) i.e. 'All correct' as your answer.
Researchers have used data prevalent
to manufacturing companies to illustrate
of technology on the environment. All correct.
Correct answer is option 'A'. Can you explain this answer?