The Planets Are "Wanderers" in the Night Sky Because They

The planets are "wanderers" in the night sky because they move relative to the stars. However, there movement is limited to the plane of the solar system, which is disk shaped. So relative to the celestial coordinate system, how do the planets actually move across the sky?

A) The move along the zodiac.
B) They follow wobbling paths related to the precession of equinoxes.
C) They move along the celestial equator.
D) The move perpendicular to the celestial equator.