Astronomy current events question: Jupiter Icy Moons radar test

Astronomy 210L, fall semester 2017
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!)

Giuseppe Sarri, Lorenzo Bruzzone, Olivier Witasse, and Markus Bauer, "Helicopter Test for Jupiter Icy Moons Radar" (September 26, 2017)
esa.int/Our_Activities/Space_Science/Helicopter_test_for_Jupiter_icy_moons_radar

The European Space Agency used __________ to test a radar boom to be used by its Jupiter Icy Moons Explorer spacecraft in 2029 to probe under the crust ice of Jupiter's moons:
(A) NASA's James Webb Space Telescope.
(B) a high-altitude balloon.
(C) the International Space Station.
(D) a submarine.
(E) a helicopter.

Correct answer: (E)

Student responses
Sections 70178, 70186
(A) : 3 students
(B) : 2 students
(C) : 2 students
(D) : 1 student
(E) : 29 students