Question

After the supernova in a star’s life cycle, what else is formed in addition to a nebula? red giant or protostar neutron star or red giant protostar or black hole black hole or neutron star

Answer 1

Hey friend, here is your answer.
Answer should be neutron star.
Hoping that it will help you.

Answer 2

The correct answer for your question is option (D)-Black hole or a neutron star.

The death of a massive star is known as the supernova. It has been frequently confused, that the supernova explosion result in the formation of planetary nebula. But the actual truth is, it form a supernova remnant.  

The supernova remnant is bounded by the ejected materials from the exploded star and shock waves. Later, probably, the gravitational collapse around the supernova remnant result in the formation of a neutron star or a black hole.