Hundreds of years ago, it was believed by many that our solar system was geocentric. this means that earth is at the center of the solar system, with the sun and other planets orbit around it. today, the solar system is now thought to be heliocentric.
what does this mean?
a) the sun and other planets orbit earth.
b) earth and all the other planets orbit the sun.
c) the other planets orbit earth, and earth orbits the sun.
d) the sun orbits earth and the other planets orbit the sun.