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: in august , a cricket team that played 120 matches won 26 % of the games it played . after a continuous winning streak , this team raised its average to 52 % . how many matches did the team win to attain this average ? 
Options: a ) 40 , b ) 52 , c ) 65 , d ) 80 , e ) 98
Example Output: c

Example Input: Problem: caleb spends $ 64.50 on 50 hamburgers for the marching band . if single burgers cost $ 1.00 each and double burgers cost $ 1.50 each , how many double burgers did he buy ? 
Options: a ) 29 , b ) 10 , c ) 20 , d ) 40 , e ) 45
Example Output: a

Example Input: Problem: if 18888 – n is divisible by 11 , and 0 < n < 11 , what is n ? 
Options: a ) 1 , b ) 3 , c ) 5 , d ) 7 , e ) 9
Example Output:
a