50 describe how a celestial sphere for the north pole would look, describe where polaris would be and how the other stars motions would appear

The Sun in the sky at different times of the year in the Northern hemisphere. The North Celestial Pole is the point in the sky about which all the stars seen from the Northern Hemisphere rotate. The North Star, also called Polaris, is located almost exactly at this point in the sky.

Explanation:

In a celestial sphere, we can view all the objects at the sky simultaneously. When we go to the North Pole of the Earth, where the northern celestial pole is located. During the course of an evening, we get to view stars that appear to circle around the north celestial pole. Polaris is also the brightest start located at the center.

it is either c or d and i know for sure it is not a or b

voluntary muscles are controlled by the cerebellum.