Astronomy current events question: Northwest Africa (NWA) 11119 meteorite

Astronomy 210L, fall semester 2019
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!)

Karin Valentine, "Oldest-Ever Igneous Meteorite Contains Clues to Planet Building Blocks" (August 2, 2019)
asunow.asu.edu/20180802-oldest-ever-igneous-meteorite-contains-clues-planet-building-blocks

The Northwest Africa (NWA) 11119 meteorite provides evidence for rocks in our solar system that were able to form before:
(A) the sun's fusion started.
(B) comets began to freeze.
(C) radioactive decay ended.
(D) terrestrial planets were born.
(E) asteroids were captured by the sun.

Correct answer: (D)

Student responses
Sections 70178, 70186
(A) : 6 students
(B) : 3 students
(C) : 1 student
(D) : 26 students
(E) : 2 students