Ptolemy was important in the history of astronomy because he ________. was the first to believe that all orb?
A. was the first to believe that all orbits are perfect circles
B. developed the first scientific model of the universe
C. developed a model of the solar system that made sufficiently accurate predictions of planetary positions to remain in use for many centuries
D. was the first to create a model of the solar system that placed the Sun rather than the Earth at the center