Give the most specific name for the quadrilateral. explain your reasoning. a quadrilateral p q r s with base s r is drawn. angle p s r and angle q r s are right angles. the measure of angle q p s is 111 degrees.

a. Parallelogram; opposite sides are parallel and congruent; angles are supplementary.
b. Rhombus; all sides are congruent; opposite angles are congruent.
c. Rectangle; opposite sides are parallel and congruent; all angles are right angles.
d. Square; all sides are congruent; all angles are right angles.