Astronomy current events question: dwarf galaxy star formation stunted by black holes

Astronomy 210L, fall semester 2019
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!)

Iqbal Pittalwala, "Black Holes Stunt Growth of Dwarf Galaxies" (October 11, 2019)
news.ucr.edu/articles/2019/10/11/black-holes-stunt-growth-dwarf-galaxies

Evidence that star formation in dwarf galaxies may be suppressed by winds produced by their central supermassive black holes is:
(A) computer simulations.
(B) gravity wave detectors.
(C) images from telescopes.
(D) underground neutrino detectors.
(E) past reversals of Earth's magnetic poles.

Correct answer: (C)

Student responses
Sections 70178, 70186
(A) : 14 students
(B) : 8 students
(C) : 17 students
(D) : 1 student
(E) : 1 student