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

Ex Input:
Problem: the ratio of 2 numbers is 4 : 6 and their h . c . f . is 8 . their l . c . m . is ? 
Options: a ) 20 , b ) 24 , c ) 52 , d ) 96 , e ) 60

Ex Output:
d


Ex Input:
Problem: the ratio between the present age of p and q is 6 : 7 . if q is 4 years old than p , what will be the ratio of the ages of p and q after 4 years ? 
Options: a ) 8 : 7 , b ) 7 : 8 , c ) 8 : 6 , d ) 6 : 7 , e ) 6 : 8

Ex Output:
a


Ex Input:
Problem: the simple form of the ratio 4 / 3 : 2 / 5 is ? 
Options: a ) 10 : 6 , b ) 10 : 3 , c ) 15 : 3 , d ) 25 : 3 , e ) 30 : 3

Ex Output:

b