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: when 52416 is divided by 312 , the quotient is 168 . what will be the quotient when 52.416 is divided by 0.68 ? 
Options: a ) 5 , b ) 6 , c ) 4 , d ) 3 , e ) 8

Ex Output:
d


Ex Input:
Problem: an object thrown directly upward is at a height of h feet after t seconds , where h = - 12 ( t - 3 ) ^ 2 + 120 . at what height , in feet , is the object 2 seconds after it reaches its maximum height ? 
Options: a ) 48 , b ) 54 , c ) 60 , d ) 66 , e ) 72

Ex Output:
e


Ex Input:
Problem: there are , in a certain league , 50 teams , and each team face another team for a total of 4 times . how many games are played in the season ? 
Options: a ) 6660 , b ) 3600 , c ) 2400 , d ) 4900 , e ) 5400

Ex Output:

d