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 monthly rent of a shop of dimension 10 feet × 10 feet is rs . 1300 . what is the annual rent per square foot of the shop ? 
Options: a ) 43 , b ) 156 , c ) 68 , d ) 87 , e ) 92

Ex Output:
b


Ex Input:
Problem: the radius of the two circular fields is in the ratio 5 : 4 the area of the first field is what percent greater than the area of the second ? 
Options: a ) 22 % , b ) 32 % , c ) 34 % , d ) 64 % , e ) 36 %

Ex Output:
d


Ex Input:
Problem: the volume of a sphere with radius r is ( 4 / 3 ) * pi * r ^ 3 and the surface area is 4 * pi * r ^ 3 . if a sperical balloon has a volume of 2304 pi cubic centimeters , what is hte surface area of the balloon in square centimeters ? 
Options: ['a ) a . 40', 'b ) b . 100', 'c ) c . 400', 'd ) d . 1,800', 'e ) e . 10,000']

Ex Output:

d