Current hypotheses state that the planets formed by what process?

A) gas expansion

B) accretion

C) nuclear fusion

D) diffusion

Im pretty sure nuclear

Answer: The planets are created by accretion.

Accretion is the accumulation of particles into a massive object by gravitationally attracting more matter.

Or in simpler terms, when materials clump together, to eventually form plants.

Nuclear fusion is the process for the stars.