which type of star will become a black hole when it dies? a protostar a supergiant a white dwarf a red dwarf

which type of star will become a black hole when it dies? a protostar a supergiant a white dwarf a red dwarf
Answer
Brief Explanations:
Supergiants are massive stars. When they run out of fuel and die, their cores can collapse under their own gravity to form black - holes. Protostars are in the early stage of star formation. White dwarfs are the remnants of low - to medium - mass stars and don't form black holes. Red dwarfs are low - mass stars that will not become black holes either.
Answer:
a supergiant