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: the average temperature for monday , tuesday , wednesday and thursday was 48 degrees and for tuesday , wednesday , thursday and friday was 46 degrees . if the temperature on monday was 44 degrees . find the temperature on friday ? 
Options: a ) 65 degrees , b ) 73 degrees , c ) 36 degrees , d ) 34 degrees , e ) 74 degrees
Example Output: c

Example Input: Problem: the maximum number of student amoung them 1204 pens and 840 pencils can be distributed in such a way that each student gets the same number of pens and same number of pencils is : 
Options: a ) 91 , b ) 28 , c ) 56 , d ) 89 , e ) none of these
Example Output: b

Example Input: Problem: if x is 11 percent greater than 70 , then x = 
Options: a ) 77.7 , b ) 91.0 , c ) 88.0 , d ) 70.9 , e ) 71.2
Example Output:
a