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

Example Input: Problem: how many trailing zeroes does 53 ! + 54 ! have ? 
Options: a ) 12 , b ) 13 , c ) 14 , d ) 15 , e ) 16
Example Output: b

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: a certain car dealership sells economy cars , luxury cars , and sport utility vehicles . the ratio of economy to luxury cars is 3 : 5 . the ratio of economy cars to sport utility vehicles is 4 : 3 . what is the ratio of luxury cars to sport utility vehicles ? 
Options: a ) 9 : 8 , b ) 8 : 9 , c ) 3 : 2 , d ) 20 : 9 , e ) 1 : 2
Example Output:
d