Which of the Following Did Galileo Find Most Significant About

Multiple Choice

Which of the following did Galileo find most significant about his observations of the motions of the large moons of Jupiter?

A) Their motions are counterclockwise (viewed from the north) ,just like the orbits of the planets.
B) Their orbits were elliptical,just like Kepler predicted.
C) Their orbits obeyed Kepler's second law.
D) The moons farther from Jupiter had longer periods,just as Copernicus had discovered for the planets around the Sun.