Astronomy current events question: Opportunity rover charging batteries

Astronomy 210L, spring semester 2012
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!)

Kelly Beatty, "Opportunity Takes a Bow, Gets Some Rest," January 25, 2012
http://www.skyandtelescope.com/news/home/Opportunity-Takes-Bow-Gets-Rest-138098593.html

The NASA Mars Exploration Rover Opportunity will park for the next several months, to:
(A) charge batteries during Martian winter.
(B) listen for Mars microquakes.
(C) upgrade and reboot its operating software.
(D) wait for the quicksand around it to harden.
(E) avoid exposure to solar flares.

Correct answer: (A)

Student responses
Sections 30678, 30679, 30680
(A) : 18 students
(B) : 6 students
(C) : 1 student
(D) : 0 students
(E) : 2 students