Assertion (A): Reading improves vocabulary. Reason (R): Vocabulary is essential for effective communication. Which of the following is correct?

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

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

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

Assertion (A): All birds can fly. Reason (R): Flight is a characteristic of all avian species.

D. A IS FALSE, BUT R IS TRUE.

Assertion (A): All fruits contain seeds. Reason (R): Seeds are necessary for plant reproduction.

D. A IS FALSE, BUT R IS TRUE.

Assertion (A): All mammals are warm-blooded animals. 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 FOR A.