The diagram shows squares 1, 2, and 3 constructed on the sides of a right triangle.
Which statement about the squares must be true?
A. (Perimeter of 1) + (Perimeter of 2) = (Perimeter of 3)
B. (Area of 1) + (Area of 2) = (Perimeter of 3)
C. (Area of 1) + (Area of 2) = (Area of 3)
D. (Perimeter of 1) + (Perimeter of 2) = (Area of 3)