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'.

Input: Consider Input: Problem: a person buys an article at rs . 400 . at what price should he sell the article so as to make a profit of 40 % ?
Options: a ) 600 , b ) 277 , c ) 560 , d ) 261 , e ) 281

Output: c

Input: Consider Input: Problem: on selling 17 balls at rs . 720 , there is a loss equal to the cost price of 5 balls . the cost price of a ball is
Options: a ) 20 , b ) 30 , c ) 40 , d ) 50 , e ) 60

Output: e

Input: Consider Input: Problem: a sells a cricket bat to b at a profit of 20 % . b sells it to c at a profit of 25 % . if c pays $ 228 for it , the cost price of the cricket bat for a is :
Options: a ) 152 , b ) 120 , c ) 130 , d ) 160 , e ) 210
Output: a