Hydrogen "Burning" in Stars Is ________

Hydrogen "burning" in stars is ________.

A) a chemical reaction that bonds hydrogen to oxygen to make water,which remains a gas because of the extremely high temperatures
B) an atomic reaction that generates hydrogen by splitting helium atoms
C) an atomic reaction that fuses 4 protons to make a helium nucleus,releasing energy by converting mass to energy
D) hydrogen atoms that combine with deuterium atoms to make HD complexes,and this reaction generates immense amounts of energy.