Passage: "Though long considered a mere byproduct of stellar formation, recent astrophysical research suggests that protoplanetary disks, once thought to be homogenous, exhibit complex magnetic field structures. These fields are now hypothesized to play a crucial role in regulating the accretion of matter, influencing planetary migration, and even determining the final mass and orbital characteristics of nascent planets." The primary purpose of the passage is to:
✓ Correct Answer: Option C
The passage moves from describing characteristics to emphasizing the 'crucial role' these magnetic fields play in multiple aspects of planetary development. While it describes characteristics, the main point is the *significance* of these findings.