The eight planets in our solar system orbit the sun, which is at or in the center of the solar system. Which best explains the positions and movements of objects found in the solar system?
A.
All positions and movements of objects found in the solar system are caused by the Sun’s powerful ultraviolet rays.

B.
The position and movements of smaller objects that have no gravity are controlled by the gravity exerted by larger objects.

C.
Gravity holds the planets in orbit around the Sun and moons in orbit around the planets.

D.
The position and movement of a planet randomly changes throughout its orbital period.