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: on selling 17 balls at rs . 720 , there is a loss equal to the cost price of 5 balls . the cost price of a ball is 
Options: a ) 20 , b ) 30 , c ) 40 , d ) 50 , e ) 60

Ex Output:
e


Ex Input:
Problem: p and q invested in a business . the profit earned was divided in the ratio 4 : 5 . if p invested rs 52000 , the amount invested by q is 
Options: a ) 30000 , b ) 50000 , c ) 40000 , d ) 20000 , e ) 65000

Ex Output:
e


Ex Input:
Problem: the cost price of 11 articles is equal to the selling price of 10 articles . what is the profit percent ? 
Options: a ) 5 % , b ) 10 % , c ) 15 % , d ) 20 % , e ) 25 %

Ex Output:

b