Most active galactic nuclei are found at large distances from us, with relatively few nearby. What does this imply?

Question

Quizplus · Accepted Answer

The fact that most active galactic nuclei are found at large distances from us implies that they tend to become less active as they age. This is because we are seeing them as they were in the past, when the universe was younger and more active.

Answer: C 
 The fact that active galactic nuclei are mostly found at large distances from the Milky Way implies that they can form only in locations that are far away from our galaxy.

Answer: D 
 The fact that active galactic nuclei are mostly found at large distances from us does not necessarily imply that they must move far away from us. It is more likely that we simply cannot observe them as easily when they are located nearby, due to the presence of dust and other obstructions in our own Milky Way galaxy.

Most Active Galactic Nuclei Are Found at Large Distances from Us