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: 48.95 - 32.006 = ?
Options: a ) 16.089 , b ) 16.35 , c ) 16.89 , d ) 16.944 , e ) none of them

Output: d

Input: Consider Input: Problem: for how many integer values of n will the value of the expression 4 n + 7 be an integer greater than 1 and less than 60 ?
Options: a ) 10 , b ) 15 , c ) 8 , d ) 12 , e ) 20

Output: b

Input: Consider Input: Problem: if the average ( arithmetic mean ) of a and b is 110 , and the average of b and c is 150 , what is the value of a c ?
Options: a ) 220 , b ) 100 , c ) 100 , d ) 80 , e ) it can not be determined from the information given
Output: d