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

Input: Consider Input: Problem: x starts a business with rs . 45000 . y joins in the business after 7 months with rs . 30000 . what will be the ratio in which they should share the profit at the end of the year ? 
Options: a ) 1 : 2 , b ) 18 : 5 , c ) 1 : 5 , d ) 3 : 1 , e ) 1 : 1

Output: b


Input: Consider Input: Problem: a pet store holds cats and dogs . if the difference between the number of cats and the number of dogs is 17 . what could be the ratio of cats to dogs in the pet store ? 
Options: a ) 1 : 3 , b ) 1 : 4 , c ) 1 : 5 , d ) 2 : 5 , e ) 68 : 85

Output: e


Input: Consider Input: Problem: evaluate 30 ! / 28 ! 
Options: a ) 720 , b ) 600 , c ) 870 , d ) 910 , e ) 650


Output: c