How are a parallelogram and a trapezoid different? A. A trapezoid has only 1 pair of parallel sides, but a parallelogram has 2. B. A parallelogram has 4 right angles, but a trapezoid doesn't need to have 4 right angles. C. A parallelogram has only 1 pair of parallel sides, but a trapezoid has 2. D. A trapezoid has 4 right angles, but a parallelogram doesn't need to have 4 right angles.
