The Copernican System for Planetary Motions Is

The Copernican system for planetary motions is

A) Earth-centered, with the planets, the Sun, and the stars mounted on crystal spheres, pivoted to allow the correct motions around Earth.
B) Earth-centered, with the planets moving in epicycles around Earth.
C) Sun-centered, with the planets moving in elliptical orbits and the Sun at one focus of the ellipse.
D) Sun-centered, with the planets moving in perfect circles around the Sun.