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 p / q = 2 / 7 , then 2 p + q = ? 
Options: a ) 11 , b ) 14 , c ) 13 , d ) 15 , e ) 16
Example Output: a

Example Input: Problem: 3 times the first of 3 consecutive odd integers is 3 more than twice the third . the third integer is ? 
Options: a ) 15 , b ) 17 , c ) 19 , d ) 21 , e ) 26
Example Output: a

Example Input: Problem: if a - b = 6 and a 2 + b 2 = 48 , find the value of ab . 
Options: a ) 8 , b ) 10 , c ) 12 , d ) 6 , e ) 19
Example Output:
d