Answer:
The correct answer would be D) Hydrogen atoms fuse together into helium, releasing nuclear energy.
The main source of energy production on the sun is nuclear fusion.
It refers to the reaction in which one or more atomic nuclei fuse together in order to form one or more nuclei of a different atom. It is a highly exothermic reaction which powers most of the stars including the sun.
On Sun and other stars, the fusion reaction initiates with the hydrogen and helium abundance which releases energy and other nuclei as the byproduct.
