What factors influence the energy system used to produce ATP?

The intensity of the play dictates the predominant energy system supplying ATP. An example of this is when the player carries the ball into contact and works at a high intensity, the ATP-PC system is the predominant energy system. As exercise intensity increases then so does heart rate and lactic acid.

Explanation:

take a break move to stretching and slowly work back into physically exercising if the problem continues go to a doctor or physical therapist

b and c would be the answers