Blast into 2026: Conquer the Astronomy Challenge – Your Cosmic Adventure Awaits!

Saturn's rings are primarily composed of ice and rock particles. The ice makes up the majority of the material in the rings, which can range in size from tiny grains to larger chunks, some being as big as a house. The presence of ice is what gives Saturn's rings their bright, reflective appearance, as ice effectively reflects sunlight.

The rocky components in the rings come from the remnants of comets, asteroids, or broken moons that have ventured too close to Saturn and been torn apart by the planet's gravity. This combination of ice and rock accounts for both the structure and brightness of the rings, making option B the most accurate choice.

In contrast, gas and dust, while they may exist in the surrounding environment of Saturn, do not primarily characterize the rings themselves. Liquid methane and ammonia, although found on Saturn and its moons, are not the main components of the rings. Solid metals are not prevalent in the rings either, as their composition primarily includes ice and rock.