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: the average marks of a class of 40 students is 44 and that of another class of 45 students is 70 . find the average marks of all the students ? 
Options: a ) 52.6 , b ) 52.4 , c ) 52.1 , d ) 69.5 , e ) 52.9

Output: d


Input: Consider Input: Problem: what is the remainder when 1003 * 1005 * 1007 is divided by 15 
Options: a ) 3 , b ) 17 , c ) 14 , d ) 0 , e ) 7

Output: d


Input: Consider Input: Problem: what is the sum of all remainders obtained when the first 130 natural numbers are divided by 9 ? 
Options: a ) 397 , b ) 401 , c ) 403 , d ) 412 , e ) 399


Output: d