Given a math problem with context and a question and 5 answer choices, the task is to provide the correct answer choice based on the problem. You must choose one of the given answer choices by letter: a, b, c, d, or e; anything else is invalid.

Input: Consider Input: Problem: it is only in the second option we find the sentence a in continuation with the opening sentence d. sentence a alone explains, why the fear has such enormous effect on the human beings.
Options: a. 28, b. 99, c. 728, d. 27, e. 271

Output: b

Input: Consider Input: Problem: what least number must be subtracted from 13294 so that the remainder is exactly divisible by 97 ?
Options: a. 3, b. 5, c. 7, d. 9, e. 10

Output: b

Input: Consider Input: Problem: the number obtained by interchanging the digits of a two - digit number is less than the original number by 36. the sum of the digits of the number is 8. what is the original number ?
Options: a. 71, b. 62, c. 53, d. 35, e. 45
Output: b