Stellar evolution is the life cycle of a star. a cycle suggests that upon death of a star, another star is born. how is this possible?

(a)stars never really die.
(b)the death is a black dwarf star. this type of death triggers the birth of a new star.
(c)the death is a red giant. this type of death emits red energy that forms a new star.
(d)the death is a supernova. this type of death can produce nebular clouds and trigger the birth of a new star.

Answer;

D. The death is a supernova. This type of death can produce nebular clouds and trigger the birth of a new star.

Explanation;

-Stellar evolution is the life cycle of a star from its formation in a nebula, to its death as a white dwarf or neutron star. This cycle is determined by the mass of the star. The larger its mass, the shorter its life cycle.

- The supernova is the explosive death of a star, and often results in the star obtaining the brightness of 100 million suns for a short time. There are general types of Supernova; Type I occurs in binary star systems in which gas from one star falls on to a white dwarf, causing it to explode and type II which occurs in stars ten times or more as massive as the Sun, which suffer runaway internal nuclear reactions at the ends of their lives, leading to an explosion.