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: if the simple interest on a certain sum of money for 5 years is one – fifth of the sum , then the rate of interest per annum is 
Options: a ) 4 % , b ) 7 % , c ) 6 % , d ) 4 % , e ) 3 %

Output: d


Input: Consider Input: Problem: john makes $ 65 a week from his job . he earns a raise andnow makes $ 70 a week . what is the % increase ? 
Options: a ) 7.69 % , b ) 16.66 % , c ) 17.8 % , d ) 19 % , e ) 21 %

Output: a


Input: Consider Input: Problem: what annual payment will discharge a debt of rs . 1090 due in 2 years at the rate of 5 % compound interest ? 
Options: a ) 993.2 , b ) 586.21 , c ) 534.33 , d ) 543.33 , e ) 646.33


Output: b