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: 33 1 / 3 % of 360 ? 
Options: a ) 80 , b ) 90 , c ) 110 , d ) 120 , e ) 130

Ex Output:
d


Ex Input:
Problem: a sum of money at simple interest amounts to rs . 825 in 3 years and to rs . 846 in 4 years . the sum is ? 
Options: a ) s . 738 , b ) s . 638 , c ) s . 650 , d ) s . 762 , e ) s . 735

Ex Output:
d


Ex Input:
Problem: find the simple interest on rs . 70,400 at 16 2 / 3 % per annum for 9 months . 
Options: a ) s . 8500 , b ) s . 8000 , c ) s . 7500 , d ) s . 8800 , e ) s . 6500

Ex Output:

d