Astronomy current events question: star-formation rates in distant, early galaxies

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!)

NRAO press release, "ALMA Explores the Hubble Ultra Deep Field" (September 22, 2016)
public.nrao.edu/news/pressreleases/2016-alma-hudf

Images from the Atacama Large Millimeter/submillimeter Array (ALMA) revealed star-formation rates in distant, early galaxies, by detecting light emitted from:
(A) type II supernova explosions.
(B) gravitational waves.
(C) dark matter.
(D) supermassive black holes.
(E) cold gas and dust.

Correct answer: (E)

Student responses
Sections 70178, 70186
(A) : 8 students
(B) : 3 students
(C) : 0 students
(D) : 2 students
(E) : 18 students