What are the key structural features of the Milky Way?
A) central axis, spiral arms, galactic disk, galactic bulge, and galactic halo
B) spiral arms, galactic disk, galactic bulge, and galactic halo
C) central axis, spiral arms, galactic bulge, and galactic halo
D) central axis, spiral arms, galactic disk, and galactic halo
Correct Answer:
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