Question

which of the following stars can be classified as a main - sequence star? a the sun b a white dwarf star c a neutron star d a black hole

Explanation:

The Sun is a main - sequence star. White dwarf stars are the remnants of low - to medium - mass stars after they have exhausted their nuclear fuel. Neutron stars are formed from the collapsed cores of massive stars during a supernova explosion. Black holes are formed from the gravitational collapse of extremely massive stars. Only the Sun among the options is in the main - sequence phase of its life cycle.

Answer:

A. the Sun