The description that best summarizes the steps that take place during black hole formation, in the correct order, is:
A massive star depletes its nuclear fuel; gravity overpowers the star; supernova occurs; core of star collapses.
This sequence accurately reflects the process: as a massive star burns through its nuclear fuel, it can no longer counteract the force of gravity, leading to a supernova explosion. After the supernova, if the remaining core is sufficiently massive, it will collapse into a black hole.