Given a math problem with context and a question and 5 answer choices, the task is to provide the correct answer choice based on the problem. You must choose one of the given answer choices by letter: a, b, c, d, or e; anything else is invalid.

Problem: the ratio between the length and the breadth of a rectangular plot is 7: 5. if the perimeter of the plot is 288 metres, what is its area ?
Options: ['a. 1320 sq. metres', 'b. 3260 sq. metres', 'c. 4280 sq. metres', 'd. 5040 sq. metres', 'e. none of these']
d