Astronomy current events question: galaxy NGC 3079 "superbubbles"

Astronomy 210L, spring 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!)

Nardy Baeza Bickel and Nicholle Cardinal, "How Galactic Bubbles Produce Energetic Particles" (March 7, 2019)
news.umich.edu/how-galactic-bubbles-produce-energetic-particles/

Observations of galaxy NGC 3079's gas "superbubbles" may provide evidence of how __________ are produced.
(A) supergiants.
(B) antimatter blobs.
(C) unstable isotopes.
(D) dark matter clouds.
(E) energetic charged particles.

Correct answer: (E)

Student responses
Sections 30679, 30680
(A) : 7 students
(B) : 0 students
(C) : 1 students
(D) : 4 students
(E) : 20 students