Why Are Some of Saturn's Rings Diffuse

Multiple Choice

Why are some of Saturn's rings diffuse?

A) Particles in diffuse rings collide infrequently, allowing them to maintain irregular orbits and spread out.
B) Particles in diffuse rings are composed of transparent materials.
C) Diffuse rings are made of methane, instead of water ice
D) Diffuse rings are composed of charged particles, which are spread out by magnetic forces.
E) Sunlight heats diffuse rings, causing the material to spread out.