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: on dividing 13698 by a certain number , we get 89 as quotient and 14 as remainder . what is the divisor ? 
Options: a ) 743 , b ) 154 , c ) 852 , d ) 741 , e ) 785

Ex Output:
b


Ex Input:
Problem: how many halves are there in 9 - fourth ? 
Options: a ) 8 , b ) 4.5 , c ) 3.2 , d ) 7 , e ) 3

Ex Output:
b


Ex Input:
Problem: how many numbers from 10 to 43 are exactly divisible by 3 ? 
Options: a ) 13 , b ) 11 , c ) 16 , d ) 17 , e ) 18

Ex Output:

b