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

Example Input: Problem: the area of a rectangular plot is 15 times its breadth . if the difference between the length and the breadth is 10 metres , what is its breadth ?
Options: a ) 10 metres , b ) 5 metres , c ) 7.5 metres , d ) data inadequate , e ) none of these
Example Output: b

Example Input: Problem: the length of a rectangle is four times its width . if the area is 100 m 2 what is the length of the rectangle ?
Options: a ) 50 m , b ) 40 m , c ) 80 m , d ) 20 m , e ) 70 m
Example Output: d

Example Input: Problem: a goat is tied to one corner of a square plot of side 12 m by a rope 7 m long . find the area it can graze ?
Options: ['a ) 32', 'b ) 36.5', 'c ) 38.5', 'd ) 39', 'e ) 39.5']
Example Output:
c