Rohit is taller than Sumit. Kanya is shorter than Jaya. To find out w...
Explanation:
In order to determine who is of the shortest height among Rohit, Sumit, Kanya, and Jaya, we need to consider the given statements and their implications.
Statement a: Sumit is shorter than Rohit.
This statement does not provide any information about the height of Kanya or Jaya, so it is not sufficient to determine who is of the shortest height.
Statement b: Jaya is taller than Kanya.
This statement does not provide any information about the height of Rohit or Sumit, so it is not sufficient to determine who is of the shortest height.
Statement c: Kanya is taller than Rohit.
This statement directly implies that Rohit is shorter than Kanya. Since Rohit is taller than Sumit according to the given information, we can conclude that Kanya is of the shortest height among the four individuals. Therefore, this statement is necessary to determine who is of the shortest height.
Statement d: None of these.
This option suggests that none of the given statements are necessary to determine who is of the shortest height. However, based on the analysis above, statement c is indeed necessary to make that determination. Therefore, option d is not the correct answer.
Conclusion:
Considering the given statements, statement c is necessary in order to determine who is of the shortest height among Rohit, Sumit, Kanya, and Jaya. Therefore, the correct answer is option C.