What does the term "silvered" describe in rabbit fur?

The term "silvered" in rabbit fur specifically refers to the presence of an abundance of silver-white or silver-tipped guard hairs. This characteristic adds a shimmering effect to the fur, as it creates a striking visual contrast when compared to the underlying color of the rabbit's coat. This description is particularly important in identifying and understanding various fur patterns and textures among rabbit breeds. The presence of these silver-tipped hairs enhances the coat's overall appearance, contributing to the breed's aesthetic value.

The other options do not accurately capture the essence of what "silvered" means. For instance, a solid silver color would imply uniformity without the variation that silver-tipped hairs provide, while a fur pattern that changes color over time does not align with the fixed characteristic of silvering. Additionally, a dull gray color suggests a lack of shine, which contradicts the luster associated with silvered fur. Thus, option B is the precise definition of "silvered" in relation to rabbit fur.