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

Example Input: Problem: the marks obtained by polly and sandy are in the ratio 4 : 5 and those obtained by sandy and willy are in the ratio of 5 : 2 . the marks obtained by polly and willy are in the ratio of . . . ? 
Options: a ) 2 : 1 , b ) 3 : 2 , c ) 4 : 3 , d ) 5 : 4 , e ) 6 : 5
Example Output: a

Example Input: Problem: 39 ! is divided by 41 . then what is the remainder for this ? 
Options: a ) 1 , b ) 3 , c ) 5 , d ) 6 , e ) 7
Example Output: a

Example Input: Problem: if w is the set of all the integers between 35 and 64 , inclusive , that are either multiples of 3 or multiples of 2 or multiples of both , then w contains how many numbers ? 
Options: a ) 18 , b ) 19 , c ) 61 , d ) 31 , e ) 11
Example Output:
b