Astronomy current events question: Titan's connected hydrocarbon lakes

Astronomy 210L, spring semester 2018
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!)

Lisa Grossman, "Most Complete Map of Titan Reveals Connected Seas and Cookie-Cutter Lakes" (December 8, 2017)
sciencenews.org/article/most-complete-map-titan-reveals-connected-seas-and-cookie-cutter-lakes?mode=topic&context=36

Analysis of hydrocarbon lake levels of Saturn's moon, Titan suggests that this liquid flows underground to:
(A) feed cryovolcanoes.
(B) create magnetic fields.
(C) form diamonds.
(D) travel between lakes.
(E) maintain warm temperatures.

Correct answer: (D)

Student responses
Section 30680
(A) : 2 students
(B) : 3 students
(C) : 4 students
(D) : 13 students
(E) : 3 students