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 shop owner professes to sell his articles at certain cost price but he uses false weights with which he cheats by 30 % while buying and by 10 % while selling . what is his percentage profit ? 
Options: a ) 10.22 % , b ) 20.22 % , c ) 21.22 % , d ) 30 % , e ) ca n ' t be calculated

Ex Output:
d


Ex Input:
Problem: a and b began business with rs . 3000 and rs . 4000 after 8 months , a withdraws rs . 1000 and b advances rs . 1000.00001 more . at the end of the year , their profits amounted to rs . 714 find the share of a . 
Options: a ) 240 , b ) 272 , c ) 379 , d ) 277 , e ) 122

Ex Output:
b


Ex Input:
Problem: at what rate percent on simple interest will rs . 750 amount to rs . 900 in 2 years ? 
Options: a ) 10 % , b ) 2 % , c ) 4 % , d ) 5 % , e ) 3 %

Ex Output:

a