Astronomy current events question: Omega Centauri habitable zone planets?

Astronomy 210L, fall semester 2018
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!)

Sarah Nightingale, "Omega Centauri Unlikely to Harbor Life" (August 9, 2018)
ucrtoday.ucr.edu/54856

Based on computer simulations of their motions, stars within the Omega Centauri cluster are unlikely to:
(A) produce solar flares.
(B) form in pairs.
(C) avoid colliding with each other.
(D) undergo supernova explosions.
(E) have habitable planets.

Correct answer: (E)

Student responses
Sections 70178, 70186
(A) : 1 student
(B) : 3 students
(C) : 8 students
(D) : 3 students
(E) : 13 students