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 23 times its breadth . if the difference between the length and the breadth is 10 metres , what is its breadth ? 
Options: a ) 13 metres , b ) 5 metres , c ) 7.5 metres , d ) data inadequate , e ) none of these
Example Output: a

Example Input: Problem: the length of the side of a square is represented by x + 2 . the length of the side of an equilateral triangle is 2 x . if the square and the equilateral triangle have equal perimeter , then the value of x is ? 
Options: a ) 5 , b ) 7 , c ) 4 , d ) 8 , e ) 6
Example Output: c

Example Input: Problem: if the difference between the length and breadth of a rectangle is 23 m and its perimeter is 206 m , what is its area ? 
Options: ['a ) 2520', 'b ) 2510', 'c ) 2525', 'd ) 2025', 'e ) 2020']
Example Output:
a