What Does the CNO Cycle and the Hydrogen Proton-Proton Cycle

Multiple Choice

What does the CNO cycle and the hydrogen proton-proton cycle have in common? Choose the best answer to the question.

A) They both are ways to fuse hydrogen nuclei to make helium.
B) They are both nuclear reactions; the CNO cycle makes carbon, nitrogen, and oxygen, and the proton cycle makes helium.
C) They are both cycles in star lives.
D) They both trigger at the same temperature.