You will be given a definition of a task first, then some input of the task.
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 length of rectangle is thrice its breadth and its perimeter is 104 m, find the area of the rectangle ?
Options: a. 507 sq m, b. 356 sq m, c. 452 sq m, d. 428 sq m, e. 525 sq m
Output:
a