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 population of a town is 10000 . it increases annually at the rate of 20 % p . a . what will be its population after 1 year ? 
Options: a ) 12300 , b ) 12350 , c ) 12000 , d ) 12500 , e ) 12600

Ex Output:
c


Ex Input:
Problem: 90 percent of your marbles are a solid color . 5 percent of your marbles are solid yellow . what percentage of your marbles are a solid color other than yellow ? 
Options: a ) 5 , b ) 15 , c ) 85 , d ) 90 , e ) 95

Ex Output:
c


Ex Input:
Problem: find the principle on a certain sum of money at 5 % per annum for 5 years if the amount being rs . 1120 ? 
Options: a ) 896 , b ) 1067 , c ) 1977 , d ) 1056 , e ) 1097

Ex Output:

a