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 man took loan from a bank at the rate of 12 % p . a . s . i . after 10 years he had to pay rs . 1500 interest only for the period . the principal amount borrowed by him was ? 
Options: a ) 1502 , b ) 1900 , c ) 1250 , d ) 1750 , e ) 2000
Example Output: c

Example Input: Problem: a sells a bicycle to b and makes a profit of 25 % . b sells the same bicycle to c at a profit of 50 % . if the final s . p . of the bicycle was rs . 225 , find out the cost price of the bicycle for a . 
Options: a ) 237 , b ) 126 , c ) 971 , d ) 611 , e ) 120
Example Output: e

Example Input: Problem: in the first 10 overs of a cricket game , the run rate was only 6.2 . what should be the run rate in the remaining 40 overs to reach the target of 282 runs ? 
Options: a ) 6.25 , b ) 5.5 , c ) 6.75 , d ) 7 , e ) 8
Example Output:
b