What Is the CNO Cycle

Multiple Choice

What is the CNO cycle?

A) the process by which helium is fused into carbon,nitrogen,and oxygen
B) the process by which carbon is fused into nitrogen and oxygen
C) a type of hydrogen fusion that uses carbon,nitrogen,and oxygen atoms as catalysts
D) the period of a massive star's life when carbon,nitrogen,and oxygen are fusing in different shells outside the core
E) the period of a low-mass star's life when it can no longer fuse carbon,nitrogen,and oxygen in its core