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

Example Input: Problem: the ratio between the number of sheep and the number of horses at the stewar farm is 3 to 7 . if each of horse is fed 230 ounces of horse food per day and the farm needs a total 12880 ounces of horse food per day . what is number sheep in the form ? ? 
Options: a ) 24 , b ) 28 , c ) 32 , d ) 56 , e ) 58
Example Output: a

Example Input: Problem: two numbers are in respectively 10 % and 40 % more than a third number . the ratio of the two numbers is ? 
Options: a ) 11 : 14 , b ) 7 : 9 , c ) 17 : 25 , d ) 15 : 26 , e ) 2 : 3
Example Output: a

Example Input: Problem: a box contains 4 black , 3 red and 6 green marbles . 2 marbles are drawn from the box at random . what is the probability that both the marbles are of the same color ? 
Options: a ) 24 / 78 , b ) 24 / 709 , c ) 24 / 76 , d ) 24 / 71 , e ) 24 / 72
Example Output:
a