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'.

Ex Input:
Problem: a man purchased 3 blankets @ rs . 100 each , 6 blankets @ rs . 150 each and two blankets at a certain rate which is now slipped off from his memory . but he remembers that the average price of the blankets was rs . 150 . find the unknown rate of two blankets ? 
Options: a ) a ) 300 , b ) b ) 350 , c ) c ) 450 , d ) d ) 470 , e ) e ) 500

Ex Output:
a


Ex 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

Ex Output:
c


Ex Input:
Problem: let s be the set of all positive integers that , when divided by 8 , have a remainder of 5 . what is the 75 th number in this set ? 
Options: a ) 597 , b ) 608 , c ) 613 , d ) 616 , e ) 621

Ex Output:

a