The correct answer is option (d) which is directly above Earth's north pole on the celestial sphere is the North Celestial Pole.
What is the North Celestial Pole?The two places in the sky where the axis of rotation of the Earth intersects the celestial sphere are known as the north and south celestial poles.
Observers at Earth's North Pole and South Pole, respectively, see the north and south celestial poles as being straight overhead all the time.
1. The celestial sphere is an imaginary sphere surrounding Earth, onto which we project the positions of stars and celestial objects.
2. The North Pole of the Earth is the point around which the Earth rotates. If we extend the Earth's axis of rotation into space, it points towards the North Celestial Pole.
3. The North Celestial Pole is the point on the celestial sphere directly above Earth's North Pole.
Learn more About celestial sphere from the given link.
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