Quasars are:
A) white dwarfs that have undergone final collapse.
B) ancient, extremely high energy galaxies believed to have formed in the early universe.
C) a conglomeration of spiral galaxies.
D) a conglomeration of pulsars within a galaxy.

Respuesta :

Answer:

D) a conglomeration of pulsars within a galaxy.

Explanation:

a massive and extremely remote celestial object, emitting exceptionally large amounts of energy, and typically having a starlike image in a telescope. It has been suggested that quasars contain massive black holes and may represent a stage in the evolution of some galaxies.