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: sam invested rs . 12000 @ 10 % per annum for one year . if the interest is compounded half - yearly , then the amount received by sam at the end of the year will be ? 
Options: a ) 13230.0 , b ) 12300.02 , c ) 16537.5 , d ) 15000.0 , e ) 16537.11

Ex Output:
a


Ex Input:
Problem: if a man lost 4 % by selling oranges at the rate of 72 a rupee at how many a rupee must he sell them to gain 44 % ? 
Options: a ) 41 , b ) 48 , c ) 49 , d ) 44 , e ) 43

Ex Output:
b


Ex Input:
Problem: a sum was put at simple interest at a certain rate for 9 years had it been put at 5 % higher rate , it would have fetched 1350 more . find the sum . 
Options: a ) 3000 , b ) 3100 , c ) 3200 , d ) 3300 , e ) 3400

Ex Output:

a