Which of the following describes a black hole formed from the collapse of a massive star?

A black hole formed from the collapse of a massive star is specifically referred to as a stellar black hole. These black holes typically form when a star with a mass greater than about 20 times that of our Sun reaches the end of its life cycle. During a supernova explosion, the outer layers are expelled, and the core collapses under the influence of gravity, leading to the formation of a stellar black hole.

Stellar black holes generally have masses ranging from a few times to several tens of solar masses. They are the most common type of black hole in the universe.

In contrast, supermassive black holes are found at the centers of galaxies and can contain millions to billions of solar masses, and their formation mechanisms are believed to be different, possibly involving the merging of smaller black holes and the accretion of mass over time. Primordial black holes, theorized to have formed in the early universe shortly after the Big Bang, are a different class entirely, distinguished by their potentially very small masses. Intermediate black holes, which are thought to exist between the mass ranges of stellar and supermassive black holes, have yet to be definitively observed and have different formation theories associated with them. Thus, the specific formation process described in the question