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'.

Input: Consider 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

Output: b


Input: Consider Input: Problem: the unit digit in the product ( 784 x 618 x 917 x 463 ) is : 
Options: a ) 5 , b ) 9 , c ) 16 , d ) 2 , e ) 42

Output: d


Input: Consider Input: Problem: in a group of cows and hens , the number of legs are 18 more than twice the number of heads . the number of cows is 
Options: a ) 5 , b ) 7 , c ) 9 , d ) 12 , e ) 14


Output: c