Astronomy current events question: supernova candidate PSN J18032459+7013306

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!)

Deborah Thompson, "Ten-year-old Canadian Boy Discovers a 600 Million Year-Old Supernova," November 1, 2013
http://www.rasc.ca/news/ten-year-old-canadian-boy-discovers-600-million-year-old-supernova

10-year-old Nathan Gray discovered supernova candidate PSN J18032459+7013306 from:
(A) listening to radio interference.
(B) deciphering a Mayan codex.
(C) a science fair project gamma-ray detector.
(D) scanning recent telescope images.
(E) a 100-year-old star chart.

Correct answer: (D)

Student responses
Sections 70178, 70186
(A) : 1 student
(B) : 0 students
(C) : 5 students
(D) : 34 students
(E) : 0 students