In this task, you need to provide the correct option for a given problem from the provided options.

Ex Input:
Problem: in a class total 34 students , 16 are have a brother , 15 are have sisters , 9 students do n ' t have either brothers or sisters . find the number of students having both brother and sisters . 
Options: a ) 4 , b ) 5 , c ) 6 , d ) 7 , e ) 8

Ex Output:
c


Ex Input:
Problem: there are 35 student in a school . 20 if them speek hindi 19 of them speak eng 9 of them speak both , then how many student neithe speak eng nor speak hindi 
Options: a ) 28 , b ) 30 , c ) 32 , d ) 35 , e ) none of these

Ex Output:
e


Ex Input:
Problem: how many different positive integers are factors of 196 ? 
Options: a ) 1 , b ) 2 , c ) 3 , d ) 49 , e ) 36

Ex Output:

d