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 reduction of 40 % in the price of bananas would enable a man to obtain 50 more for rs . 40 , what is reduced price per dozen ? 
Options: a ) 1.34 , b ) 2.84 , c ) 3.84 , d ) 4.34 , e ) 5

Output: c


Input: Consider Input: Problem: at an election 2 candidates are participated and a candidate got 20 % of votes and defeated by 500 . and 10 votes are invalid . find the total polled votes ? 
Options: a ) 843 , b ) 1023 , c ) 965 , d ) 413 , e ) 1245

Output: a


Input: Consider Input: Problem: the difference between compound interest and simple interest on a certain amount of money at 5 % per annum for 2 years is 20 . find the sum : 
Options: a ) 4500 , b ) 7500 , c ) 5000 , d ) 8000 , e ) none of these


Output: d