Question

4 what is the term for the point on the celestial sphere that is directly overhead for an observer? equator latitude zenith nadir

Explanation:

The zenith is defined as the point on the celestial sphere directly overhead an observer. The equator is a great - circle on the celestial sphere, latitude is a coordinate for position on Earth or celestial sphere related to north - south position, and the nadir is the point directly below the observer.

Answer:

C. Zenith