Assertion (A): All rectangles are quadrilaterals. Reason (R): Quadrilaterals have four sides.

A. BOTH A AND R ARE TRUE, AND R IS THE CORRECT EXPLANATION FOR A.

Assertion (A): All mammals are warm-blooded. Reason (R): Warm-blooded animals can regulate their body temperature internally. Which of the following is correct?

A. BOTH A AND R ARE TRUE, AND R IS THE CORRECT EXPLANATION OF A.

Assertion (A): All birds can fly. Reason (R): Flying is a characteristic of all animals with wings. Which of the following is correct?

D. A IS FALSE, BUT R IS TRUE.

Assertion (A): Some fruits are sweet. Reason (R): Sweetness is a taste characteristic of all edible items. Which of the following is correct?

B. BOTH A AND R ARE TRUE, BUT R IS NOT THE CORRECT EXPLANATION OF A.

Assertion (A): All squares are rectangles. Reason (R): All rectangles have four sides. Which of the following is correct?

A. BOTH A AND R ARE TRUE, AND R IS THE CORRECT EXPLANATION OF A.