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Our sun supplies energy to the Earth as a result of solar fusion. Hydrogen atoms undergo fusion to make helium.

Which of the following statements below most accurately describe fusion in the sun?

A

Four protons combine to make helium and this is an exothermic chemical reaction that produces a high amount of energy which streams to the Earth.

B

When the four protons create helium, the four particles combine in a single step as a result of the high pressure pushing them together. Two protons change into neutrons. This is a reaction that releases energy from the interaction of the quarks during that change.

C

The mass of the helium produced is less than the mass of the four protons that came together. The mass difference is converted to energy.

D

The interior of the sun is very hot. So hot in fact, that the hydrogen burns. This oxidation reaction creates the energy that comes from the sun.

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