Which best describes the differences between how ptolemy and copernicus described the solar system?
a.
ptolemy saw the sun at the center of the solar system, while copernicus saw the earth as the center.
b.
ptolemy saw the earth at the center of the solar system, while copernicus saw the moon as the center.
c.
ptolemy had a heliocentric view of the universe, while copernicus had a geocentric view of the solar system.
d.
ptolemy saw the earth at the center of the solar system, while copernicus saw the sun as the center.