Astronomy current events question: lunar surface dark and light swirls

Astronomy 210L, spring semester 2019
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!)

Sarah Frazier, "NASA Mission Reveals Origins of Moon's 'Sunburn'" (February 27, 2019)
nasa.gov/feature/goddard/2019/nasa-mission-reveals-origins-of-moons-sunburn

Images of dark and light swirls on the moon sent back by NASA's ARTEMIS spacecraft may have been caused by the solar wind:
(A) stirring up dust storms.
(B) melting underground ice.
(C) warming the moon's core.
(D) deflected by magnetic fields.
(E) causing camera malfunctions.

Correct answer: (D)

Student responses
Sections 30679, 30680
(A) : 10 students
(B) : 4 students
(C) : 5 students
(D) : 20 students
(E) : 4 students