Astronomy current events question: Venus' active volcanoes?

Astronomy 210L, spring semester 2020
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!)

News release, "Scientists Find Evidence that Venus May Have Active Volcanoes" (January 3, 2020)
lpi.usra.edu/features/010320/venus/

Venus may currently have active volcanoes, based on laboratory experiments of how __________ may have affected minerals over time.
(A) solar storms.
(B) ancient oceans.
(C) meteor impacts.
(D) strong magnetic fields.
(E) atmospheric conditions.

Correct answer: (E)

Student responses
Sections 30679, 30680
(A) : 2 students
(B) : 1 student
(C) : 3 students
(D) : 7 students
(E) : 27 students