At the end of its evolution, a star can become:
- A white dwarf
- A black hole
- A neutron star
A brown dwarf and a supernova are not endpoints of stellar evolution in the same way. A brown dwarf is not a star in the traditional sense and does not represent an endpoint for stellar evolution, while a supernova is an explosive event that occurs during the death of certain stars, not a final state. Therefore, the three correct answers are a white dwarf, a black hole, and a neutron star.