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

Example Input: Problem: local kennel has cats and dogs in the ratio of 6 : 12 . if there are 24 fewer cats than dogs , how many dogs are in the kennel ? 
Options: a ) 50 , b ) 48 , c ) 52 , d ) 54 , e ) 56
Example Output: b

Example Input: Problem: in a graduating class of 232 students , 144 took geometry and 119 took biology . what is the difference between the greatest possible number p and the smallest possible number of students that could have taken both geometry and biology ? 
Options: a ) 144 , b ) 119 , c ) 113 , d ) 88 , e ) 31
Example Output: d

Example Input: Problem: how many of the positive factors of 42 , 104 and how many common factors are there in numbers ? 
Options: a ) 4 , b ) 2 , c ) 3 , d ) 5 , e ) 1
Example Output:
b