What describes the arch (arc) of a rabbit?

The arch, or arc, of a rabbit refers to a gentle curvature that extends from the neck to the rear, which is a key characteristic of a well-formed rabbit. This smooth transition creates an aesthetically pleasing line along the animal's body and is a sign of good conformation. A proper arch supports the rabbit's posture and overall health, allowing for balanced weight distribution and optimal movement.

A straight back without any curvature does not showcase the desired form and lacks the graceful appearance expected in show rabbits. A pronounced drop in the spine would indicate a poor body structure, which is usually undesirable in competitive rabbits. Similarly, a raised position of the back while standing might suggest tension or an unnatural posture, which can affect the rabbit's well-being and presentation. Thus, the gentle curvature described in the correct choice aligns with proper rabbit anatomy and presentation standards.