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.

Ex Input:
Problem: if a no. when divided by 44, gives 432 as quotient and 0 as remainder. what will be the remainder when dividing thesame no. by 31
Options: a. 2, b. 4, c. 5, d. 7, e. 8

Ex Output:
c

Ex Input:
Problem: the sum of 4 consecutive even numbers is 140. what would be the smallest number ?
Options: a. 32, b. 88, c. 70, d. 123, e. 12

Ex Output:
a

Ex Input:
Problem: a trader sells 85 meters of cloth for rs. 8500 at the profit of rs. 15 per metre of cloth. what is the cost price of one metre of cloth ?
Options: a. rs. 80, b. rs. 85, c. rs. 90, d. rs. 95, e. none of these

Ex Output:
b