Where Are the X-Rays Produced That Are Emitted by Quasars

Where are the X-rays produced that are emitted by quasars and other active galactic nuclei?

A) in the hot gas in an accretion disk around a central black hole
B) in an ionization nebulae of interstellar gas surrounding the accretion disk
C) in dust grains in molecular clouds that encircle the active galactic nucleus
D) in fast-moving jets of electrons that are ejected from the active galactic nucleus
E) all of the above