In this task, you need to answer the given multiple-choice question on the general math. Classify your answers into 'a', 'b', 'c', 'd', and 'e'.

Example Input: Problem: the largest 5 digit number exactly divisible by 91 is : 
Options: a ) 25698 , b ) 581396 , c ) 369741 , d ) 99918 , e ) 1258
Example Output: d

Example Input: Problem: n is a whole number which when divided by 4 gives 3 as remainder . what will be the remainder when 2 n is divided by 4 ? 
Options: a ) 3 , b ) 2 , c ) 1 , d ) 0 , e ) 5
Example Output: b

Example Input: Problem: the product of two numbers is 4107 . if the h . c . f . of these numbers is 37 , then the greater number is : explanation : 
Options: a ) 101 , b ) 107 , c ) 111 , d ) 117 , e ) 121
Example Output:
c