passage IV

34. Based on the passage, which of the following state- ments best describes Bailin’s study as it relates to the field of astronomy?

  • A. It led astronomers to the discovery of a warp in the Milky Way’s disk.

  • B. It convinced more astronomers to focus their attention on the center of the Milky Way.

  • C. It revealed problems with the basic assumptions held by most astronomers.

  • D. It provided evidence for an idea that scientists had long considered a possibility but had not yet proved.