What evidence tells us that quasars are the centers of distant galaxies?
A)Images and spectra show quasars to be embedded at the centers of distant galaxies.
B)Rapid variations in quasar luminosity tell us that they must be quite small in size.
C)All quasars have large redshifts.
D)Quasars are extremely luminous.

Question

Quizplus · Accepted Answer

Images and spectra of quasars show them to be located at the centers of galaxies, providing direct evidence that they are the centers of these galaxies. The other options (B, C, and D) are not unique to quasars and do not provide specific evidence that they are the centers of galaxies.

What Evidence Tells Us That Quasars Are the Centers of Distant