Astronomy current events question: KIC 05807616 planets

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!)
Astronomy.com editors, "Astronomers Discover Two Planets That Survived Their Star's Expansion," December 22, 2011
Two planets that apparently survived being engulfed by their bloated, dying parent star KIC 05807616 were discovered by NASA's Kepler space telescope from:
(A) light reflected or emitted by the planets.
(B) radar pulse timing variations.
(C) star wobbles detected by ground-based telescopes.
(D) asteroid fragment trails.
(E) reformation of their cores.

Correct answer: (A)

Student responses
Sections 30678, 30679, 30680
(A) : 18 students
(B) : 5 students
(C) : 2 students
(D) : 4 students
(E) : 3 students

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