The Peak of the Quasar Epoch Was

Multiple Choice

The peak of the quasar epoch was:

A) when there was still enough dark matter to fuel the supermassive black holes in their bar.
B) when there was still sufficient mass to fuel the supermassive black holes at their center.
C) before the formation of galaxies.
D) before the star formation epoch.
E) before mass had a chance to accumulate at the nucleus.