Astronomy current events question: Boraxino neutrino experiment

Astronomy 210L, fall semester 2014
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!)

Clara Moskowitz, "Strange Neutrinos from the Sun Detected for the First Time," August 27, 2014
http://www.scientificamerican.com/article/solar-neutrinos-detected-borexino/

Neutrinos produced by __________ were observed in a large underground water reservoir at Italy’s Gran Sasso National Laboratory.
(A) dark matter.
(B) the moon's gravitational forces.
(C) aurora borealis.
(D) fusion reactions in the sun.
(E) an ancient supernova explosion.

Correct answer: (D)

Student responses
Sections 70178, 70186
(A) : 3 students
(B) : 4 students
(C) : 5 students
(D) : 26 students
(E) : 2 students