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 should be the least number to be added to the 3198 number to make it divisible by 8 ? 
Options: a ) 12 , b ) 17 , c ) 2 , d ) 77 , e ) 26

Ex Output:
c


Ex Input:
Problem: ( 32323 + 7344 + 41330 ) - ( 317 x 91 ) = ? 
Options: a ) 54210 , b ) 54250 , c ) 52150 , d ) none of these , e ) 521500

Ex Output:
c


Ex Input:
Problem: pat , kate and mark charged a total of 216 hours to a certain project . if pat charged twice as much time to the project as kate and 1 / 3 as much times as mark , how many more hours did mark charge to the project than kate . 
Options: a ) 18 , b ) 36 , c ) 120 , d ) 90 , e ) 108

Ex Output:

c