From which location would an observer NEVER see polaris in the nighttime sky

The location from which an observer never see Polaris in the nighttime sky are the points D and E

Explanation:

The Polaris can be seen to rise higher within the sky as we travel in the northward direction when close to the north pole.

At the North Pole, the Polaris can be sighted vertically overhead an observer

When we travel in the southward direction, the Polaris elevation draws closer to the horizon in the North

At the equator the level of the Polaris is at the horizon, such that if we continue to the south of the equator, the Polaris can no longer be seen in the sky.