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: ramu bought an old car for rs . 42000 . he spent rs . 13000 on repairs and sold it for rs . 60900 . what is his profit percent ? 
Options: a ) 10.7 % , b ) 19 % , c ) 18 % , d ) 14 % , e ) 16 %

Ex Output:
a


Ex Input:
Problem: what annual installment will discharge a debt of rs . 1092 due in 3 years at 12 % simple interest ? 
Options: a ) 442 , b ) 441 , c ) 440 , d ) 320 , e ) 532

Ex Output:
a


Ex Input:
Problem: shopkeeper rise price by 35 % and gives successive discount of 10 % and 15 % . what is overall % gain or loss ? 
Options: a ) 5.275 % , b ) 4.275 % , c ) 3.275 % , d ) 6.275 % , e ) 7.275 %

Ex Output:

c