What is the motion of stars in the bulge across the inner part of the Milky Way Galaxy?
A) The stars move in roughly circular orbits.
B) The stars oscillate back and forth across the bulge, retracing the same path again and again.
C) The stars are part of a density wave that moves around the galactic center.
D) The stars basically remain stationary within the bulge.
Correct Answer:
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