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'.

Input: Consider Input: Problem: ( 36 ) ^ 2
Options: a ) 6 , b ) 14 , c ) 36 , d ) 21 , e ) none of these

Output: c

Input: Consider Input: Problem: the tax on a commodity is diminished by 32 % but its consumption is increased by 12 % . find the decrease percent in the revenue derived from it ?
Options: a ) 20 % , b ) 18 % , c ) 15 % , d ) 12 % , e ) 24 %

Output: e

Input: Consider Input: Problem: in an examination , 32 % of total students failed in hindi , 56 % failed in english and 12 % in both . the percentage of these who passed in both the subjects is :
Options: a ) 24 , b ) 37 , c ) 28 , d ) 40 , e ) 81
Output: a