Which factor contributes to dominance in basketball and track according to the material?

• A. A higher proportion of fast-twitch muscle fibers
• B. Less body fat, longer arms, and slimmer hips
• C. Cultural influence and opportunity
• D. Coolness under pressure

Answer: (B)

Biology and biomechanics shape who dominates in basketball and track. Having less body fat, longer arms, and slimmer hips can give you practical advantages in both sports: leaner mass improves speed and efficiency, longer arms extend reach and control for defense, blocking, catching, and leverage, and slimmer hips reduce rotational inertia, aiding quicker starts, better acceleration, and more efficient changes of direction. While traits like a high proportion of fast-twitch fibers can help with explosive movements, the material emphasizes body proportions and composition as the key contributors to dominance in these contexts. Cultural influence or opportunity can affect access and development, but they don’t change the physical edge described here, and being cool under pressure is a psychological factor rather than a physical attribute.