Name a common grooming issue for long-haired cavy breeds.

Matted fur and tangles are indeed a common grooming issue for long-haired cavy breeds. These breeds, due to their longer fur, require regular grooming to keep their coats healthy and manageable. If proper grooming routines are not maintained, the fur can become matted due to dirt, debris, or even just the natural oils produced by the skin. Tangles can form when the hair gets caught on furniture, during play, or from the cavies' own movement. Regular brushing and grooming help prevent these mats from forming, which can be uncomfortable for the cavy and may even lead to skin issues if not addressed.

Other options like shedding in large clumps may occur for various reasons, including health-related issues or seasonal changes, but are less specific to the grooming challenges presented by long-haired breeds. Faded color on the body is generally a result of environmental factors or age rather than a grooming issue. Excessive itching could indicate skin problems or allergies, which are separate concerns not specific to long-haired breeds. Thus, the focus on matted fur and tangles aligns directly with the typical challenges faced during the grooming process for these breeds.