Astronomy current events question: repeat of hecil505 "Residual" supernova

Astronomy 210L, fall semester 2015
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!)

Patrick Kelly, Steve Rodney, Tommaso Treu, and Mathias Jäger, "Astronomers Get Once-in-a-Lifetime opportunity to Predict Supernova" (November 13, 2015)
spacetelescope.org/announcements/ann1526/

NASA's Hubble Space Telescope will observe a repeat next year of the heci1505 "Refsdal" supernova observed last year, due to its light being distorted by the gravity of:
(A) a galaxy cluster.
(B) a wormhole.
(C) emission nebulae.
(D) antimatter.
(E) tachyon particles.

Correct answer: (A)

Student responses
Sections 70178, 70186
(A) : 20 students
(B) : 0 students
(C) : 7 students
(D) : 4 students
(E) : 3 students