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'.

Example Input: Problem: there were two candidates in an election . winner candidate received 58 % of votes and won the election by 288 votes . find the number of votes casted to the winning candidate ?
Options: a ) 776 , b ) 1044 , c ) 299 , d ) 257 , e ) 125
Example Output: b

Example Input: Problem: if a man lost 4 % by selling oranges at the rate of 16 a rupee at how many a rupee must he sell them to gain 28 % ?
Options: a ) 12 , b ) 13 , c ) 14 , d ) 15 , e ) 10
Example Output: a

Example Input: Problem: to produce an annual income of rs . 1200 from a 15 % stock at 90 , the amount of stock needed is :
Options: a ) s . 10,000 , b ) s . 10,800 , c ) s . 14,400 , d ) s . 16,000 , e ) s . 46,000
Example Output:
a