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: 2.505 / 10.02 = 
Options: a ) 0.35 , b ) 0.3505 , c ) 0.25 , d ) 0.351 , e ) 0.3527

Output: c


Input: Consider Input: Problem: when 1 / 20 % of 4,000 is subtracted from 1 / 10 of 4,000 , the difference is 
Options: a ) 50 , b ) 200 , c ) 380 , d ) 398 , e ) 400

Output: d


Input: Consider Input: Problem: the average of 50 numbers is 38 . if two numbers 45 and 55 are discarded , the average of the remaining set of numbers is 
Options: a ) 38.5 , b ) 37.5 , c ) 37.0 , d ) 36.5 , e ) none of these


Output: b