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: what is the remainder when 1003 * 1005 * 1007 is divided by 15 
Options: a ) 3 , b ) 17 , c ) 14 , d ) 0 , e ) 7

Ex Output:
d


Ex Input:
Problem: if a number x is 10 % less than another number y and y is 10 % more than 125 , then x is equal to 
Options: a ) 143 , b ) 150 , c ) 123.75 , d ) 140.55 , e ) none

Ex Output:
c


Ex Input:
Problem: prints a page 40 pg per min . if the printed for 2 hours except 20 min . where there was an paper jam , how many page did it print 
Options: a ) 4,000 , b ) 12,880 , c ) 14,880 , d ) 8,880 , e ) 18,880

Ex Output:

a