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: the profits of qrs company rose 10 % from march to april , then dropped 20 % from april to may , then rose 50 % from may to june . what was the percent increase for the whole quarter , from march to june ? 
Options: a ) 15 % , b ) 32 % , c ) 40 % , d ) 62 % , e ) 80 %

Output: b


Input: Consider Input: Problem: a watch was sold at a loss of 10 % . if it was sold for rs . 168 more , there would have been a gain of 4 % . what is the cost price ? 
Options: a ) s : 1000 , b ) s : 1067 , c ) s : 1200 , d ) s : 1028 , e ) s : 1027

Output: c


Input: Consider Input: Problem: an error 1 % in excess is made while measuring the side of a square . what is the percentage of error in the calculated area of the square ? 
Options: a ) 4.05 % , b ) 4.02 % , c ) 4 % , d ) 3 % , e ) 2.01 %


Output: e