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

Example Input: Problem: 99 ! how many zero ' s ? 
Options: a ) 20 , b ) 21 , c ) 22 , d ) 23 , e ) 24
Example Output: c

Example Input: Problem: in a certain town , the ratio of ny yankees fans to ny mets fans is 3 : 2 , and the ratio of ny mets fans to boston red sox fans is 4 : 5 . if there are 330 baseball fans in the town , each of whom is a fan of exactly one of those three teams , how many ny mets fans are there in this town ? 
Options: a ) 72 , b ) 88 , c ) 95 , d ) 120 , e ) 135
Example Output: b

Example Input: Problem: 100 students appeared in 2 tests . 60 students passed 1 st test . 40 students passed in the 2 nd test . 20 students passed in both 1 and 2 tests . what is the probability of the students who failed in both tests ? 
Options: a ) 10 % , b ) 15 % , c ) 20 % , d ) 25 % , e ) 30 %
Example Output:
c