Final answer:
The polygon OPQR is a rectangle, quadrilateral, and parallelogram. It can also be a square or a rhombus based on certain conditions.
Step-by-step explanation:
The polygon OPQR with the given conditions is a rectangle and a quadrilateral. It can also be classified as a parallelogram because opposite sides are parallel. Since all angles measure 90°, it is a rectangle. If the sides are also congruent, it would be a square. If the diagonals are congruent, it would be a rhombus. Therefore, the options that apply are c. Rectangle, d. Rhombus, and e. Square.