Which fitness component is defined as the ability of the body systems to gather, process, and deliver oxygen?

• A. Cardiovascular/Respiratory Endurance
• B. Stamina
• C. Strength
• D. Flexibility

Answer: (A)

The ability of the body systems to gather, process, and deliver oxygen points to how efficiently the heart, lungs, and circulatory system support sustained activity. This is cardiovascular/respiratory endurance, the aerobic side of fitness that enables prolonged work by delivering oxygen to working muscles. Stamina is related but broader and less specific to the oxygen transport system, while strength concerns force production and flexibility concerns joint range of motion. So the option describing cardiovascular/respiratory endurance is the best fit.