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: solve the quickfire maths brain teaser â ˆ š 25 % = ? 
Options: a ) 30 % , b ) 40 % , c ) 50 % , d ) 19 % , e ) 29 %

Ex Output:
c


Ex Input:
Problem: sue ' s trail mix is 30 % nuts and 70 % dried fruit . jane ' s trail mix is 60 % nuts and 40 % chocolate chips . if the combined mixture of sue and jane ' s trails mix contains 40 % nuts , what percent of the combined mixture is dried fruit ? 
Options: a ) 16.7 % , b ) 23.33 % , c ) 25 % , d ) 33.3 % , e ) 46.7 %

Ex Output:
e


Ex Input:
Problem: a person spent rs . 6,040 from his salary on food and 8,000 on house rent . after that he was left with 70 % of his monthly salary . what is his monthly salary ? 
Options: a ) 46,800 , b ) 66,800 , c ) 56,800 , d ) 26,800 , e ) 76,800

Ex Output:

a