Astronomy current events question: recent impact on Jupiter

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!)

Phil Plait, "Jupiter Got Whacked by Yet Another Asteroid/Comet!" (March 29, 2016)
slate.com/blogs/bad_astronomy/2016/03/29/jupiter_hit_by_asteroid_or_comet_in_march_2016.html

Amateur astronomers in Europe recently observed a bright flash on Jupiter, which may have been caused by a(n):
(A) solar flare.
(B) undiscovered ring system.
(C) moon eclipse.
(D) meteor or comet impact.
(E) massive lightning storm.

Correct answer: (D)

Student responses
Sections 30678, 30679, 30680
(A) : 1 student
(B) : 1 student
(C) : 2 students
(D) : 20 students
(E) : 5 students