Astronomy current events question: HISAKI (SPRINT-A) mission objective

Astronomy 210L, fall semester 2013
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!)

JAXA press release, "Extreme Ultraviolet Spectroscope for Exospheric Dynamics HISAKI (SPRINT-A)," (date not specified)
http://www.isas.jaxa.jp/e/enterp/missions/sprint-a/index.shtml

Japan's recently launched HISAKI SPRINT-A space telescope will observe Venus, Mars, and Jupiter's moon Io to investigate their atmospheres':
(A) interaction with the solar wind.
(B) greenhouse gases.
(C) contribution from volcanic activity.
(D) seasonal variations.
(E) ability to support primitive life.

Correct answer: (A)

Student responses
Sections 70178, 70186, 70200
(A) : 12 students
(B) : 28 students
(C) : 4 students
(D) : 6 students
(E) : 6 students