Most of the stars in the milky way will end their lives as
a. white dwarfs.
c. supernovas.
b. black holes.
d. red giants.

The correct answer for the question that is being presented above is this one: "a. white dwarfs." Most of the stars in the Milky Way will end their lives as white dwarfs. A white dwarf is very dense: its mass is comparable to that of the Sun, while its volume is comparable to that of Earth.

The study of where things are 

The correct answer should be brand c.