Ans. Cardiovascular endurance.
The state in which the lungs, heart, and blood vessels are able to distribute the nutrients and oxygen to working muscles and remove the waste products efficiently at the time of prolonged exercise is known as cardiovascular endurance.
Cardiovascular endurance defines how long a person can be active or keep going during prolonged physical activity, such as cycling, running, playing a sport, or walking.
Thus, the correct answer is 'cardiovascular endurance.'