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'.

Ex Input:
Problem: you enter a weight loss challenge game and manage to lose 12 % of your body weight . for the final weigh in you are forced to wear clothes that add 2 % to your weight . what percentage of weight loss is measured at the final weigh in ? 
Options: a ) 10.24 % , b ) 9.22 % , c ) 9 % , d ) 14 % , e ) 12 %

Ex Output:
a


Ex Input:
Problem: an agent , gets a commission of 2.5 % on the sales of cloth . if on a certain day , he gets rs . 21 as commission , the cloth sold through him on that day is worth 
Options: a ) 333 , b ) 500 , c ) 840 , d ) 299 , e ) 132

Ex Output:
c


Ex Input:
Problem: shopkeeper rise price by 33 % and gives successive discount of 10 % and 15 % . what is overall % gain or loss ? 
Options: a ) 1.745 % , b ) 4.745 % , c ) 3.745 % , d ) 6.745 % , e ) 7.745 %

Ex Output:

a