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'.

Example Input: Problem: a cycle is bought for rs . 1120 and sold for rs . 1200 , find the gain percent ? 
Options: a ) 7 % , b ) 2 % , c ) 6 % , d ) 1 % , e ) 8 %
Example Output: a

Example Input: Problem: 30 is what percent of 100 ? 
Options: a ) 35 % , b ) 30 % , c ) 45 % , d ) 50 % , e ) 55 %
Example Output: b

Example Input: Problem: two numbers are less than third number by 35 % and 37 % respectively . how much percent is the second number less than by the first 
Options: a ) 8 % , b ) 10 % , c ) 33 % , d ) 41 % , e ) 42 %
Example Output:
c