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

Ex Output:
e


Ex Input:
Problem: a , b and c invests rs . 2000 , rs . 3000 and rs . 4000 in a business . after one year a removed his money ; b and c continued the business for one more year . if the net profit after 2 years be rs . 3200 , then a ' s share in the profit is ? 
Options: a ) 299 , b ) 267 , c ) 269 , d ) 400 , e ) 276

Ex Output:
d


Ex Input:
Problem: the banker ' s gain on a bill due due 1 year hence at 12 % per annum is rs . 6.6 . the true discount is 
Options: a ) rs . 72 , b ) rs . 36 , c ) rs . 55 , d ) rs . 50 , e ) none

Ex Output:

c