Why Do Astronomers Believe Black Holes Are the Source of an AGN's

question 5

Multiple Choice

Why do astronomers believe black holes are the source of an AGN's energy?

• A) It's expected since black holes have been found at the center of most galaxies.
• B) Radio jets are seen in many AGN and those only come from black holes.
• C) Black holes have been observed directly there.
• D) Only black holes can produce so much energy in such a small place.

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