Ganymede is one of the many moons of jupiter. it is nearly spherical in shape. it is larger than the planet mercury and slightly smaller than the planet mars. if it is so large compared with the bodies around it, why is it called a moon and not a planet? a it is too far from the sun.
b it is smaller than jupiter.
c it moves in an orbit around jupiter.
d it has no gravitational pull.

C It moves in an orbit around Jupiter.

Explanation:

A moon is a natural satellite of some planet and is recognized as the star that circulates around a main planet, that is, does not orbit around a star, that is, to be considered moon, the star must move in a orbit around a planet. Some moons are larger than some major planets, such as Ganymede and Titan, natural satellites of Jupiter and Saturn, respectively, which are larger than Mercury. Thus, if the orbit of these moons were around the Sun, they could be considered as planets, but their orbits are around the planet Jupiter or Saturn, so they are considered moons.