Astronomy Question. Please help!?

Question

Which of the following was not a major advantage of Copernicus's Sun-centered model over the Ptolemaic model?

A) It made significantly better predictions of planetary positions in our sky.

B) It offered a more natural explanation for the apparent retrograde motion of planets in our sky.

C)It allowed calculation of the orbital periods and distances of the planets.

Answer 1

 it is A