Select the option that is different from the rest.

A) Golf ball – Small, hard, round ball used in golf.

B) Tennis ball – Medium-sized, soft, round ball used in tennis.

C) American football – Oval-shaped, used in American football.

D) Cricket ball – Hard, round ball used in cricket.

Golf ball, Tennis ball, and Cricket ball are all round in shape.

American football is oval-shaped, making it different from the rest.

Thus, the correct option is (C) American football.​