What Aspect of Kepler's Theory Would Have Horrified All Astronomers

Multiple Choice

What aspect of Kepler's theory would have horrified all astronomers before Kepler?

A) Kepler's simple circular orbits.
B) The fact that the Earth has a spherical shape in Kepler's theory.
C) The fact that Earth was no longer at the center.
D) Kepler's elliptical orbits.
E) The absence of any epicycles [or "circles- within- circles"].