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: 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 100 ?
Options: a ) 30 , b ) 28 , c ) 27 , d ) 25 , e ) 26
Example Output: d

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

Example Input: Problem: what should be the least number to be added to the 3198 number to make it divisible by 8 ?
Options: a ) 12 , b ) 17 , c ) 2 , d ) 77 , e ) 26
Example Output:
c