What body position should a cavy be in when being presented to a judge?

The correct answer is that a cavy should be presented upright with all four feet on the table. This position demonstrates the animal's balance, structure, and overall health to the judge. When a cavy is standing upright, it allows the judge to properly assess its conformation, coat quality, and general condition. This stance also mimics the natural posture of a healthy cavy, showcasing its best features without any stress or discomfort.

In contrast, other positions would either obscure the cavy's physique or do not present it in a way that facilitates a thorough evaluation by the judge. For example, being curled in a ball or lying flat on its side would not allow the judge to view essential aspects like the animal's build or coat. Sitting on its hind legs is also not an appropriate position for judging, as it does not reflect the normal and natural stance of a cavy, which can lead to misjudgments regarding its physical characteristics.