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

Ex Input:
Problem: the ratio of three numbers is 5 : 3 : 4 and their sum is 108 . the second number of the three numbers is ? 
Options: a ) 23 , b ) 27 , c ) 30 , d ) 32 , e ) 34

Ex Output:
b


Ex Input:
Problem: the triplicate ratio of 1 : 7 is ? 
Options: a ) 1 : 7 , b ) 1 : 8 , c ) 1 : 343 , d ) 1 : 1 , e ) 1 : 2

Ex Output:
c


Ex Input:
Problem: if 65 percent of a class answered the first question on a certain test correctly , 55 percent answered the second question on the test correctly , and 20 percent answered neither of the questions correctly , what percent answered both correctly ? 
Options: a ) 45 % , b ) 40 % , c ) 35 % , d ) 30 % , e ) 25 %

Ex Output:

b