In this task, you need to answer the given multiple-choice question on the gain. Gain is the value by which to multiply the input. Classify your answers into 'a', 'b', 'c', 'd', and 'e'.

Ex Input:
Problem: at an election 2 candidates are participated and a candidate got 45 % of votes and defeated by 9000 . and 83 votes are invalid . find the total polled votes ? 
Options: a ) 84512 , b ) 78452 , c ) 65893 , d ) 90083 , e ) 74502

Ex Output:
d


Ex Input:
Problem: ? % of 360 = 108.0 
Options: a ) 277 , b ) 36 , c ) 64 , d ) 72 , e ) 30

Ex Output:
e


Ex Input:
Problem: a sum of money at simple interest amounts to rs . 815 in 3 years and to rs . 854 in 4 years . the sum is ? 
Options: a ) 287 , b ) 278 , c ) 698 , d ) 279 , e ) 275

Ex Output:

c