Final answer:
The correct answer is option a. Stability in an athlete refers to their ability to control the forces that make them stable. In physics, stable equilibrium refers to a system's ability to return to its equilibrium position after being displaced. This can be achieved by controlling the center of gravity and expanding the base of support.
Step-by-step explanation:
Stability refers to the ability to control the forces that make an athlete stable. In physics, stability refers to a system's ability to return to its equilibrium position after being displaced. When an athlete is in stable equilibrium, the net force or torque experienced by the system is in the direction opposite to the displacement.
This can be achieved by controlling the center of gravity and expanding the base of support. For example, when a person lowers their center of gravity by bending their knees or spreads their feet apart, their stability is increased.