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: a candidate got 33 % of the votes polled and he lost to his rival by 833 votes . how many votes were cast ? 
Options: a ) 2250 , b ) 2450 , c ) 2650 , d ) 2850 , e ) 3050

Ex Output:
b


Ex Input:
Problem: i bought two books ; for rs . 600 . i sold one at a loss of 15 % and other at a gain of 19 % and then i found each book was sold at the same price . find the cost of the book sold at a loss ? 
Options: a ) 197 , b ) 280 , c ) 189 , d ) 278 , e ) 350

Ex Output:
e


Ex Input:
Problem: a student gets 60 % in one subject , 70 % in the other . to get an overall of 70 % how much should get in third subject . 
Options: a ) 75 % , b ) 80 % , c ) 45 % , d ) 55 % , e ) 65 %

Ex Output:

b