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'.

Input: Consider Input: Problem: if 3 x – 5 y = 5 and x / x + y = 5 / 7 , then what is the value of x – y ? 
Options: a ) 9 , b ) 6 , c ) 4 , d ) 3 , e ) none of these

Output: d


Input: Consider Input: Problem: the sum of three consecutive multiples of 3 is 108 . what is the largest number ? 
Options: a ) 36 , b ) 39 , c ) 33 , d ) 30 , e ) 42

Output: b


Input: Consider Input: Problem: the largest 3 digit number exactly divisible by 88 is ? 
Options: a ) a ) 9944 , b ) b ) 9954 , c ) c ) 9967 , d ) d ) 9969 , e ) e ) 9970


Output: a