There is a relationship between breathing and cellular respiration. Breathing involves taking in oxygen and releasing carbon dioxide. How does the oxygen affect the process of cellular respiration?

> Oxygen and ATP combine to produce energy in the form of carbon dioxide.
> Oxygen and glucose combine to produce energy in the form of ATP molecules.
> Oxygen and hydrogen combine to produce energy in the form of ATP molecules.
> Oxygen and carbon dioxide combine to produce energy in the form of ATP molecules.