In this task, you need to answer the given multiple-choice question on the general math. Classify your answers into 'a', 'b', 'c', 'd', and 'e'.

Example Input: Problem: if a ' s height is 45 % less than that of b , how much percent b ' s height is more than that of a ? 
Options: a ) 66.66 % , b ) 81.81 % , c ) 66.766 % , d ) 86.66 % , e ) 66.65 %
Example Output: b

Example Input: Problem: for how many integer values of n will the value of the expression 4 n + 7 be an integer greater than 1 and less than 120 ? 
Options: a ) 22 , b ) 24 , c ) 26 , d ) 28 , e ) 30
Example Output: e

Example Input: Problem: the sum q of prime numbers that are greater than 60 but less than 70 is 
Options: a ) 67 , b ) 128 , c ) 191 , d ) 197 , e ) 260
Example Output:
b