In this task, you need to answer the given multiple-choice question on the general math. Classify your answers into 'a', 'b', 'c', 'd', and 'e'.

Ex Input:
Problem: when 1 / 10 % of 4,000 is subtracted from 1 / 10 of 4,000 , the difference is 
Options: a ) 50 , b ) 200 , c ) 396 , d ) 398 , e ) 400

Ex Output:
c


Ex Input:
Problem: i chose a number and divide it by 8 . then i subtracted 100 from the result and got 6 . what was the number i chose ? 
Options: a ) 600 , b ) 700 , c ) 800 , d ) 900 , e ) 848

Ex Output:
e


Ex Input:
Problem: find the value for x from below equation : x / 3 = - 4 ? 
Options: a ) - 12 , b ) 1 , c ) - 2 , d ) - 3 , e ) 4

Ex Output:

a