Do the Astronomical Coordinates of Right Ascension and Declination of a Star

Do the astronomical coordinates of right ascension and declination of a star change systematically night by night?

A) They do not change, since they are positions on a fixed star chart.
B) Yes, because of the motion of Earth in its orbit around the Sun.
C) Yes, because of the bending of light by Earth's atmosphere.
D) Yes, because of the precession of Earth's spin axis.

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