Astronomy current events question: location of fast radio burst source?

Astronomy 210L, spring 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!)

Commonwealth Scientific and Industrial Research Organisation news release, "Solved! First Distance to a 'Fast Radio Burst'" (February 25, 2016)
csiro.au/en/News/News-releases/2016/Solved-First-distance-to-a-fast-radio-burst

A fast radio burst detected by radio telescopes may originate from a distant galaxy, based on evidence from:
(A) gravitational wave detectors.
(B) underground neutrino detectors.
(C) matter and antimatter annihilation.
(D) GPS satellite signals.
(E) a separate optical telescope.

Correct answer: (E)

Student responses
Sections 30678, 30679, 30680
(A) : 15 students
(B) : 4 students
(C) : 2 students
(D) : 6 students
(E) : 7 students