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: the cost price of a radio is rs . 1500 and it was sold for rs . 1110 , find the loss % ? 
Options: a ) 18 , b ) 16 , c ) 26 , d ) 17 , e ) 11

Ex Output:
c


Ex Input:
Problem: if each edge of cube increased by 30 % , the percentage increase in 
Options: a ) 69 , b ) 72 , c ) 64 , d ) 61 , e ) 75

Ex Output:
a


Ex Input:
Problem: a present value of a machine is $ 1100 . its value depletion rate is 10 % per annum then find the machine value after 2 years ? 
Options: a ) $ 900 , b ) $ 891 , c ) $ 915 , d ) $ 715 , e ) $ 795

Ex Output:

b