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: joe ' s average ( arithmetic mean ) test score across 4 equally weighted tests was 35 . he was allowed to drop his lowest score . after doing so , his average test score improved to 40 . what is the lowest test score that was dropped ?
Options: a ) 20 , b ) 25 , c ) 55 , d ) 65 , e ) 80
Example Output: a

Example Input: Problem: when toys are grouped into 12 and 18 , always 3 toys remain ungrouped . what is the minimum number of toys to be added so that when they are grouped into 7 , no toys will remain ungrouped ?
Options: a ) 0 , b ) 1 , c ) 2 , d ) 3 , e ) 4
Example Output: d

Example Input: Problem: when positive integer n is divided by positive integer j , the remainder is 10 . if n / j = 134.08 , what is value of j ?
Options: a ) 125 , b ) 56 , c ) 78 , d ) 112 , e ) 175
Example Output:
a