If an Observer Watches (Or Photographs) Stars near the North

If an observer watches (or photographs) stars near the north celestial pole for a period of several hours, in what basic pattern do they appear to move?

A) spirals, as the stars move while Earth rotates
B) ellipses, with the North Pole at one focus
C) almost straight lines, rising from the horizon toward the zenith
D) circles, with the north celestial pole at the center