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

Ex Input:
Problem: a number is said to be prime saturated if the product of all the different positive prime factors of t is less than the square root of t . what is the greatest two digit prime saturated integer ? 
Options: a ) 99 , b ) 98 , c ) 97 , d ) 96 , e ) 95

Ex Output:
d


Ex Input:
Problem: a bag contains 5 red , 4 blue and 3 green balls . if 2 ballsare picked at random , what is the probability that both are red ? 
Options: a ) 1 / 13 , b ) 2 / 23 , c ) 5 / 33 , d ) 4 / 27 , e ) 3 / 23

Ex Output:
c


Ex Input:
Problem: what number has a 1 : 20 ratio to the number 10 ? 
Options: a ) 10 , b ) 1 / 2 , c ) 2 , d ) 1 / 4 , e ) 20

Ex Output:

b