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: a person buys an article at rs . 500 . at what price should he sell the article so as to make a profit of 35 % ? 
Options: a ) 600 , b ) 887 , c ) 256 , d ) 654 , e ) 675
Example Output: e

Example Input: Problem: last year sandy saved 6 % of her annual salary . this year , she made 10 % more money than last year , and she saved 9 % of her salary . the amount saved this year was what percent of the amount she saved last year ? 
Options: a ) 140 % , b ) 152 % , c ) 165 % , d ) 176 % , e ) 190 %
Example Output: c

Example Input: Problem: a fruit seller had some oranges . he sells 40 % oranges and still has 540 oranges . how many oranges he had originally ? 
Options: a ) 700 , b ) 900 , c ) 720 , d ) 730 , e ) 740
Example Output:
b