Question

What happens during the entire fusion process in the Sun?

Answer 1

Okay... so here's what happened;

A huge amount of mass is above you, squeezing down from you from all sides; that's what happened to the hydrogen gas in the core of the sun. It got squeezed together so tightly that four hydrogen nuclei combined to form one helium atom. That's called nuclear fusion. In the process, some of the mass of the hydrogen atoms is converted into energy in the form of light.
:)

Answer 2

C) Six hydrogen nuclei come together to produce one helium nucleus and two protons, and energy is released.