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

Example Input: Problem: what is the square root of 121 ? 
Options: a ) 11 , b ) 12 , c ) 16 , d ) 18 , e ) 25
Example Output: a

Example Input: Problem: in a certain large company , the ratio of college graduates with a graduate degree to non - college graduates is 1 : 8 , and ratio of college graduates without a graduate degree to non - college graduates is 2 : 3 . if one picks a random college graduate at this large company , what is the probability w this college graduate has a graduate degree ? 
Options: a ) 1 / 11 , b ) 1 / 12 , c ) 1 / 13 , d ) 3 / 19 , e ) 3 / 43
Example Output: d

Example Input: Problem: how many zeros does 10 ! end with ? 
Options: a ) 10 , b ) 4 , c ) 4 , d ) 3 , e ) 2
Example Output:
e