What essential aspects of a cavy's health should be monitored before showing?

Monitoring a cavy's health before showing is crucial for ensuring both the well-being of the animal and its performance in the show ring. The correct choice emphasizes three fundamental aspects: weight, fur quality, and absence of disease.

Weight is important as it indicates whether the cavy is healthy and properly nourished. A cavy that is underweight or overweight may face health issues and will not present well at a show.

Fur quality is another essential factor. A well-groomed cavy with shiny, healthy fur will catch the judge's eye and also demonstrates that the owner takes good care of the animal. Poor fur quality could signal underlying health issues, such as parasites or malnutrition.

The absence of disease is critical for both the individual animal and the overall health of all cavies in the show. Showing an unhealthy animal can lead to the spread of illness and affects the integrity of the competition.

While considering only fur quality and color, dietary needs and grooming products, or size and age may seem relevant, they do not encompass the comprehensive view of a cavy's health that is necessary for showing. Therefore, the holistic approach of monitoring weight, fur quality, and health status is vital for success in a cavy show.