All rectangles are parallelograms. All parallelograms are quadrilaterals. Which conclusion logically follows?
- A. No rectangles are quadrilaterals.
- B. All rectangles are quadrilaterals. ✓
- C. Some parallelograms are rectangles.
- D. All quadrilaterals are rectangles.
Correct answer
B. All rectangles are quadrilaterals.
Explanation
Since all rectangles are parallelograms, and all parallelograms are quadrilaterals, it follows that all rectangles are quadrilaterals.