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: of the 100 people in a room , 2 / 5 are women . if 1 / 4 of the people are married , what is the maximum number of women in the room who could be unmarried ? 
Options: a ) 32 , b ) 34 , c ) 36 , d ) 38 , e ) 40

Ex Output:
e


Ex Input:
Problem: if 25 % of x is 30 less than 20 % of 1000 , then x is ? 
Options: a ) 188 , b ) 216 , c ) 156 , d ) 680 , e ) 121

Ex Output:
d


Ex Input:
Problem: a certain galaxy is known to comprise approximately 4 x 10 ^ 12 stars . of every 50 million of these stars , one is larger in mass than our sun . approximately how many stars in this galaxy are larger than the sun ? 
Options: a ) 800 , b ) 1,250 , c ) 80,000 , d ) 12,000 , e ) 80,000

Ex Output:

c