How Did Tycho Brahe's Astronomical Observations Undermine the Ptolemaic Model

How did Tycho Brahe's astronomical observations undermine the Ptolemaic model of the universe?

A) They demonstrated that Jupiter had moons.
B) They demonstrated the existence of yet undiscovered planets beyond Saturn whose gravity was influencing the known planets.
C) They demonstrated that the comet of 1577 needed to have passed right through the crystalline spheres postulated by the Ptolemaic model.
D) They demonstrated that the planets must have circular orbits.
E) They demonstrated that planetary motion was elliptical not circular.