Respuesta :
C the runners feet pushing against the ground describes the acceleration toward the finish line
The action force in the example given is: C) The runner's feet pushing against the ground.
What is a force?
A force can be defined as a push or pull of an object or physical body which typically results in a change of motion (acceleration), especially due to the interaction of the object or physical body with another.
According to Newton's Second Law of Motion, the force that acts on an object or physical body is highly dependent on both its mass and acceleration.
In this scenario, the force exerted by the runner's feet against the ground as he or she accelerates toward the finish line is an example of an action force.
Read more on force here: brainly.com/question/1121817