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: ashok secured average of 77 marks in 6 subjects . if the average of marks in 5 subjects is 74 , how many marks did he secure in the 6 th subject ? 
Options: a ) 38 , b ) 27 , c ) 92 , d ) 17 , e ) 80

Output: c


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: what is the unit ’ s digit of 7 ^ 7 
Options: a ) 9 , b ) 5 , c ) 3 , d ) 7 , e ) 1


Output: c