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: carol and jordan draw rectangles of equal area . if carol ' s rectangle measures 12 inches by 15 inches and jordan ' s rectangle is 6 inches long , how wide is jordan ' s rectangle , in inches ? 
Options: ['a ) 24', 'b ) 26', 'c ) 28', 'd ) 30', 'e ) 32']

Ex Output:
d


Ex Input:
Problem: the slant height of a cone is 13 cm and radius of the base is 9 cm , find the curved surface of the cone ? 
Options: a ) 367 , b ) 378 , c ) 365 , d ) 26 , e ) 28

Ex Output:
a


Ex Input:
Problem: the ratio of the volumes of two cubes is 2197 : 1331 . what is the ratio of their total surface areas ? 
Options: a ) 169 : 121 , b ) 169 : 127 , c ) 169 : 191 , d ) 121 : 169 , e ) 121 : 182

Ex Output:

a