Answer
$D$
Work Step by Step
Option A is true for all rectangles because all rectangles are parallelograms, and the definition of a parallelogram is a quadrilateral that has parallel opposite sides.
Option B is true for all rectangles because all rectangles are parallelograms because opposite sides are parallel.
Option C is true for all rectangles because the definition of a rectangle is a parallelogram that has four right angles.
Option D is not true for all rectangles. Only rectangles that are squares have four congruent sides whereas for other rectangles, only opposite sides are congruent.
