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