Every large galaxy has a supermassive black hole in its center, but we do not see quasars in all galaxies. Why is that? (Select all that apply)

Answer 1

A. The supermassive black hole is not active.
B. The supermassive black hole is not large enough.
C. The galaxy does not have enough gas and dust to fuel the quasar.
D. The galaxy is too far away for us to observe the quasar.