Astronomy current events question: "nearly naked" supermassive black hole

Astronomy 210L, fall semester 2016
Cuesta College, San Luis Obispo, CA

Students are assigned to read online articles on current astronomy events, and take a short current events quiz during the first 10 minutes of lab. (This motivates students to show up promptly to lab, as the time cut-off for the quiz is strictly enforced!)
Dave Finley, "Close Galactic Encounter Leaves 'Nearly Naked' Supermassive Black Hole" (November 2, 2016)
The Very Long Baseline Array (VLBA) discovered that B3 1715+425 is a "nearly naked" supermassive black hole, which may be the remnant of a galaxy that:
(A) fit inside of its own event horizon.
(B) passed through a larger galaxy.
(C) was composed of antimatter.
(D) devoured all of its own stars.
(E) had dead spiral arms.

Correct answer: (B)

Student responses
Sections 70178, 70186
(A) : 2 students
(B) : 8 students
(C) : 2 students
(D) : 8 students
(E) : 1 student

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