The correct answer is D. All the above.
The Earth rotates on its axis once every 24 hours. This rotation causes the stars to appear to move across the sky in a circular motion. The center of this circular motion is the celestial pole. The celestial pole is the point in the sky directly above the Earth’s North Pole or South Pole.
The stars do not actually move in circular concentrated parts. They appear to move in this way because the Earth is rotating. As the Earth rotates, different stars come into view. The stars that are closest to the celestial pole appear to move in a small circle, while the stars that are further away appear to move in a larger circle.
The Earth’s rotation also causes the Sun and Moon to appear to move across the sky. The Sun appears to move across the sky from east to west, while the Moon appears to move across the sky from west to east. This is because the Earth is rotating from west to east.