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: uncle bruce is baking chocolate chip cookies . he has 36 ounces of dough ( with no chocolate ) and 12 ounces of chocolate . how many ounces of chocolate are left over if he uses all the dough but only wants the cookies to consist of 20 % chocolate ? 
Options: a ) 3 , b ) 6 , c ) 7.2 , d ) 7.8 , e ) 9

Ex Output:
a


Ex Input:
Problem: a dishonest dealer professes to sell goods at the cost price but uses a weight of 840 grams per kg , what is his percent ? 
Options: a ) 19 , b ) 25 , c ) 77 , d ) 88 , e ) 11

Ex Output:
a


Ex Input:
Problem: in a shop , the profit is 320 % of the cost . if the cost increases by 25 % but the selling price remains constant , approximately what percentage of the selling price is the profit ? 
Options: a ) 70 % , b ) 50 % , c ) 100 % , d ) 60 % , e ) 55 %

Ex Output:

a


