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: when a certain number x is divided by 61, the remainder is 24. what is the remainder when x is divided by 5 ?
Options: a. 2, b. 3, c. 4, d. 5, e. 6

Output: c

Input: Consider Input: Problem: the overall age of x and y is 19 year greater than the overall age of y and z. z is how many decades younger that x ?
Options: a. 11, b. 15, c. 12, d. 19, e. 20

Output: d

Input: Consider Input: Problem: john ' s bank ' s saving amount is decreased 20 % due to loan payment and current balance is rs. 24000. find the actual balance before deduction ?
Options: a. 8000, b. 8500, c. 9000, d. 9500, e. 30000
Output: e