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

Ex Input:
Problem: in a class of 38 children , 19 play tennis , 21 play squash and 10 play neither sport . ( 1 ) how many children play both sports ?
Options: a ) 11 , b ) 12 , c ) 14 , d ) 15 , e ) 19

Ex Output:
b

Ex Input:
Problem: if 1 = 3 2 = 6 3 = 9 4 = 12 5 = 15 then 9 = ? hint : its a logic riddle not a mathematical riddle
Options: a ) 1 , b ) 2 , c ) 3 , d ) 4 , e ) 5

Ex Output:
c

Ex Input:
Problem: in a group of 15 people , 8 read english , 7 read french while 3 of them read none of these two . how many of them read french and english both ?
Options: a ) 2 , b ) 3 , c ) 4 , d ) 7 , e ) 5

Ex Output:
b