Which statement about the Sun is true?
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Available choices:
 a). The Sun is a very large star that exists far from the Milky Way Galaxy.;
 b). The Sun is at the center of the Milky Way Galaxy.;
 c). The Sun is a medium-sized star near the edge of the Milky Way Galaxy.;
 d). The Sun has the Milky Way and several other galaxies moving in orbits around it.;