Mutation would be the best answer.
A main sequence star is bigger than a neutron star,because neutron stars are remnant degenerate matter from a collapsed star,they are completely made out of Neutrons and are extremely dense,and have a diameter of only a several Kilometers.M<span>ost of them have a mass of 1.35-2 Solar masses.</span>
Sediment; There is a source of heat that was not included in the question to create all the other choices.
that's all wrong the real answer is b.99.3
