Answer:
A. Endurance is important for participating in sports because it provides the energy needed to maintain physical activity for long periods of time.
Endurance allows an individual to sustain prolonged physical activity by delivering oxygen and nutrients to the muscles, which helps to delay fatigue and improve overall performance. Endurance training can improve cardiovascular health, increase muscular endurance, and enhance overall physical fitness, making it an essential component of sports performance. Short spurts of energy (C) are more related to anaerobic activities and do not rely on endurance, while option B is incorrect as it contradicts the importance of endurance, and option D is a partial truth but not the most comprehensive answer.