If the Redshifts of Quasars Arise from the Expansion of the Universe

Multiple Choice

If the redshifts of quasars arise from the expansion of the universe yet they have brighter magnitudes than galaxies with the same redshifts, the quasar must

A) be very small.
B) be within the Local Group.
C) be a single star with an extremely large mass.
D) be moving toward Earth with a large radial velocity.
E) emit a very large amount of energy per second.