Which of the following factors are included in sport performance?

The correct answer encompasses a set of physical qualities that are crucial for optimal sport performance. Agility, balance, coordination, speed, and power are all key components that contribute to an athlete's ability to perform effectively in a competitive setting.

Agility allows athletes to change direction quickly and efficiently, which is vital in sports where movements are not linear. Balance aids in maintaining control during complex movements, enabling athletes to execute skills without losing stability. Coordination is essential as it allows multiple body parts to work together seamlessly, enhancing the precision of movements. Speed is critical for most sports as it directly affects an athlete's ability to move quickly and perform actions such as sprinting, jumping, or maneuvering around opponents. Finally, power combines strength and speed, providing the explosive energy needed during high-intensity activities.

While the other options include important factors related to physical performance, they do not encapsulate the same comprehensive blend of skills needed in a competitive sporting context as the chosen option does. For instance, some options may focus more heavily on endurance or flexibility, which, while beneficial, do not reflect the full spectrum of qualities that contribute to effective sport performance.