Astronomy current events question: habitable planet around pulsars?

Astronomy 210L, spring 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!)

News release, "Habitable Planets Could Exist Around Pulsars" (December 19, 2017)
cam.ac.uk/research/news/habitable-planets-could-exist-around-pulsars

Researchers have recently calculated that it is possible for potentially habitable exoplanets to be found orbiting:
(A) brown dwarfs.
(B) type II supernovae.
(C) red dwarfs.
(D) black stars.
(E) neutron stars.

Correct answer: (E)

Student responses
Sections 30679, 30680
(A) : 1 student
(B) : 6 students
(C) : 6 students
(D) : 1 student
(E) : 27 students