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: john makes $ 50 a week from his job . he earns a raise and now makes $ 80 a week . what is the % increase ? 
Options: a ) 16 % , b ) 16.66 % , c ) 17.9 % , d ) 18.12 % , e ) 60 %

Output: e


Input: Consider Input: Problem: a man can row his boat with the stream at 18 km / h and against the stream in 8 km / h . the man ' s rate is ? 
Options: a ) 5 kmph , b ) 2 kmph , c ) 7 kmph , d ) 8 kmph , e ) 3 kmph

Output: a


Input: Consider Input: Problem: a fruit seller had some apples . he sells 40 % apples and still has 420 apples . originally , he had : 
Options: a ) 588 apples , b ) 742 apples , c ) 750 apples , d ) 600 apples , e ) 700 apples


Output: e