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: how many even number in the range between 8 to 100 inclusive are not divisible by 3 
Options: a ) 15 , b ) 30 , c ) 32 , d ) 33 , e ) 46
Example Output: c

Example Input: Problem: in a hostel , the number of students decreased by 10 % and the price of food increased by 20 % over the previous year . if each student consumes the same amount of food then by how much should the consumption of food be cut short by every student , so that the total cost of the food remains the same as that of the previous year ? 
Options: a ) 19 % , b ) 15 % , c ) 25 % , d ) 40 % , e ) 7.4 %
Example Output: e

Example Input: Problem: if the price of a book is first decreased by 25 % and then increased by 20 % , then the net change in the price will be : 
Options: a ) 10 , b ) 388 , c ) 37 , d ) 29 , e ) 22
Example Output:
a