Astronomy current events question: "overcontact binary" system VFTS 352

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!)

Leonardo Almeida, Hugues Sana, Selma de Mink, Richard Hook, "Final Kiss of Two Stars Heading for Catastrophe" (October 21, 2015)
eso.org/public/usa/news/eso1540/

The stars in the "overcontact binary" system VFTS 352 discovered by the European Southern Observatory's Very Large Telescope may: (A) share some of their material.
(B) detach to become two separate stars.
(C) have twin sets of Earth-like planets.
(D) be a matter-antimatter pair.
(E) cool down to become a double planet.

Correct answer: (A)

Student responses
Section 70178
(A) : 16 students
(B) : 4 students
(C) : 3 students
(D) : 1 student
(E) : 0 students