Rings of Giant Planets Are Very Thin Compared to Their

Multiple Choice

Rings of giant planets are very thin compared to their diameters mainly because

A) of collisions between ring particles.
B) moons that tidally disrupt have small diameters.
C) energy is conserved when a moon tidally disrupts.
D) the planets have large tidal forces.
E) shepherd moons force them to be extremely thin.