If a Nearby Galaxy Still Acts Like a Quasar Today

If a nearby galaxy still acts like a quasar today, what is the most likely explanation?

A) the galaxy was formed recently, and is just now going through its "adolescence"
B) the galaxy must have an enormous Doppler shift and must have traveled here from a large distance away
C) the galaxy must be made entirely of very massive stars; very few low mass stars exist in it
D) the galaxy must be undergoing a collision with another galaxy that is providing fresh fuel for its central black hole
E) the dark matter in the galaxy must be undergoing a transformation into matter we can see