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 50 ounces of dough ( with no chocolate ) and 40 ounces of chocolate . how much chocolate is left over if he uses all the dough but only wants the cookies to consist of 30 % chocolate ?
Options: a ) 22.86 , b ) 23.86 , c ) 25 , d ) 26 , e ) 27

Ex Output:
a

Ex Input:
Problem: a candidate got 33 % of the votes polled and he lost to his rival by 833 votes . how many votes were cast ?
Options: a ) 2250 , b ) 2450 , c ) 2650 , d ) 2850 , e ) 3050

Ex Output:
b

Ex Input:
Problem: kanul spent $ 5000 in buying raw materials , $ 200 in buying machinery and 30 % of the total amount he had as cash with him . what was the total amount ?
Options: a ) $ 7456.00 , b ) $ 7500.55 , c ) $ 7428.57 , d ) $ 7852.56 , e ) $ 7864.00

Ex Output:
c