In this task, you need to answer the given multiple-choice question on geometry. Classify your answers into 'a', 'b', 'c', 'd', and 'e'.

Ex Input:
Problem: the surface of a cube is 96 sq cm . find its volume ? 
Options: ['a ) 8 cc', 'b ) 9 cc', 'c ) 2 cc', 'd ) 4 cc', 'e ) 64 cc']

Ex Output:
e


Ex Input:
Problem: if the diameter of circle r is 60 % of the diameter of circle s , the area of circle r is what percent of the area of circle s ? 
Options: ['a ) 50 %', 'b ) 46 %', 'c ) 36 %', 'd ) 26 %', 'e ) 38 %']

Ex Output:
c


Ex Input:
Problem: the length of a rectangle is increased by 15 % and its breadth is decreased by 20 % . what is the effect on its area ? 
Options: a ) 1288 , b ) 1299 , c ) 1000 , d ) 10000 , e ) 9200

Ex Output:

e


