Answer:
A. To make a right triangle in the center, the area of the smaller two squares must add to equal the area of the largest square.
Step-by-step explanation: The Pythagorean Theorem states that the square of the length of the two smaller side of a triangle should add up to the square of the largest side. Since the area of a square is basically square of one of its sides, it means if we the are of the two smaller square add up to the are of the largest square.