Astronomy current events question: Hayabusa2 hopping rovers

Astronomy 210L, fall 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!)

Amber Jorgenson, "Hayabusa2 Rovers Start Exploring Asteroid Ryugu" (September 27, 2018)
astronomy.com/news/2018/09/hayabusa2-rovers-start-exploring-asteroid-ryugu

The Japan Aerospace Exploration Agency's Hayabusa2 spacecraft landed two rovers on the asteroid Ryugu, which move around its surface by __________ from site to site.
(A) hopping.
(B) rolling.
(C) crawling.
(D) drilling.
(E) floating.

Correct answer: (A)

Student responses
Sections 70178, 70186
(A) : 9 students
(B) : 5 students
(C) : 4 students
(D) : 3 students
(E) : 5 students