Which of the following refers to physiological attributes that enable support for physical activity?

The correct answer, physical fitness, encompasses a range of physiological attributes that enable individuals to perform physical activities effectively. This concept extends beyond just the ability to lift weights or run long distances; it includes endurance, flexibility, strength, and body composition. Physical fitness is essential because it reflects a person's overall health and well-being, as well as their capacity to engage in various forms of exercise and physical tasks.

While body composition, muscular strength, and aerobic power are all components of physical fitness, they represent specific attributes within the broader category. Body composition focuses on the proportions of fat and lean mass in the body, which is just one aspect of fitness. Muscular strength refers to the maximum amount of force a muscle can exert, and aerobic power relates to the efficiency of the cardiovascular and respiratory systems during prolonged physical activities. These components are critical for overall fitness, but they do not fully encapsulate the comprehensive nature of physical fitness as a whole. Thus, physical fitness is the most inclusive and accurate term that describes the physiological attributes that support physical activity.