Astronomy current events question: fast radio burst FRB 121102 source

Astronomy 210L, spring semester 2017
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, "Precise Location, Distance Provide Breakthrough in Study of Fast Radio Bursts" (January 4, 2017)
public.nrao.edu/news/pressreleases/fast-radio-burst

By combining data from radio and visible light telescopes, the source of the repeating fast radio burst FRB 121102 was determined to be a neutron star or a black hole located in a(n):
(A) emission nebula.
(B) distant dwarf galaxy.
(C) Milky Way spiral arm.
(D) globular cluster.
(E) cold hydrogen cloud.

Correct answer: (B)

Student responses
Sections 30679, 30680
(A) : 6 students
(B) : 19 students
(C) : 8 students
(D) : 3 students
(E) : 1 student