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

Example Input: Problem: a class has a ratio of 3 : 6 : 7 of children with red hair , blonde hair and black hair respectively . if the class has 9 kids with red hair , how many kids are in the class ?
Options: a ) 99 , b ) 48 , c ) 16 , d ) 22 , e ) 60
Example Output: b

Example Input: Problem: the triplicate ratio of 1 : 7 is ?
Options: a ) 1 : 7 , b ) 1 : 8 , c ) 1 : 343 , d ) 1 : 1 , e ) 1 : 2
Example Output: c

Example Input: Problem: find the number of zeroes at the end of 50 !
Options: a ) 10 , b ) 11 , c ) 12 , d ) 13 , e ) 14
Example Output:
c