Astronomy current events question: NASA's James Webb Space Telescope's "habitability index" search

Astronomy 210L, fall semester 2015
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!)

Peter Kelley, "Where to Look for Life? UW Astronomers Devise ‘Habitability Index’ to Guide Future Search" (October 5, 2015)
washington.edu/news/2015/10/05/where-to-look-for-life-uw-astronomers-devise-habitability-index-to-guide-future-search/

Researchers developed a “habitability index” to prioritize NASA's James Webb Space Telescope's future observations of:
(A) star formation.
(B) supernovae explosions.
(C) planet atmospheres.
(D) alien photosynthesis.
(E) organic compounds.

Correct answer: (C)

Student responses
Sections 70178, 70186
(A) : 2 students
(B) : 2 students
(C) : 23 students
(D) : 3 students
(E) : 3 students