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: a , b and c enter into partnership . a invests some money at the beginning , b invests double the amount after 6 months , and c invests thrice the amount after 8 months . if the annual gain be rs . 24000 . a ' s share is ? 
Options: a ) 2999 , b ) 8000 , c ) 6000 , d ) 2889 , e ) 6612

Ex Output:
b


Ex Input:
Problem: sheela deposits rs . 5000 in bank savings account . if this is 20 % of her monthly income . what is her monthly income in ? 
Options: a ) 22000 , b ) 20000 , c ) 25000 , d ) 22235 , e ) none of these

Ex Output:
c


Ex Input:
Problem: the principal that amounts to rs . 4913 in 3 years at 6 1 / 4 % per annum c . i . compounded annually , is ? 
Options: a ) 288 , b ) 267 , c ) 200 , d ) 4096 , e ) 2771

Ex Output:

d