Question

which object forms when a supergiant explodes?
a red giant
a protostar
a white dwarf
a neutron star

Explanation:

When a supergiant explodes in a supernova, if its core has enough mass, a neutron star can form. A red - giant is a different stage in stellar evolution before a supergiant. A protostar is an early - stage star before it begins nuclear fusion. A white dwarf forms from the remnants of lower - mass stars, not from supergiant explosions.

Answer:

D. a neutron star