What Happens in the Carbon-Nitrogen-Oxygen (CNO)cycle

Multiple Choice

What happens in the carbon-nitrogen-oxygen (CNO) cycle?

A) Carbon nuclei are split 3 ways to make helium nuclei.
B) Carbon and oxygen combine to form nitrogen, which produces energy.
C) Carbon and nitrogen combine to form oxygen and energy.
D) Four hydrogen nuclei combine to form one helium nucleus and energy.