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.
Q: Problem: the length of a rectangle is one fourth of the radius of a circle. the radius of the circle is equal to the side of the square, whose area is 784 sq. units. what is the area ( in sq. units ) of the rectangle if the rectangle if the breadth is 5 units ?
Options: ['a. 35 sq. units', 'b. 45 sq. units', 'c. 55 sq. units', 'd. 50 sq. units', 'e. 40 sq. units']
A:
a