Compared with Stars in the Disk, Orbits of Stars in the Halo

Multiple Choice

Compared with stars in the disk, orbits of stars in the halo

A) do not have to be around the galactic center.
B) are confined to a relatively thin plane.
C) are elliptical, orbiting in the same direction.
D) are elliptical, with random orientations.
E) do not have to pass through the plane of the galaxy.