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: evaluate 248 + 64
Options: a ) 14 , b ) 26 , c ) 16 , d ) 36 , e ) 46

Ex Output:
c

Ex Input:
Problem: the average monthly income of p and q is rs . 2050 . the average monthly income of q and r is rs . 5250 and the average monthly income of p and r is rs . 6200 . the monthly income ofq is :
Options: a ) 1100 , b ) 2100 , c ) 1200 , d ) 3100 , e ) 1300

Ex Output:
a

Ex Input:
Problem: the product of two numbers is 4107 . if the h . c . f of these numbers is 37 , then the greater number is ?
Options: a ) 377 , b ) 126 , c ) 111 , d ) 727 , e ) 121

Ex Output:
c