What term describes the desired degree of perfection in condition for a rabbit?

The term that describes the desired degree of perfection in condition for a rabbit is "finish." In the context of rabbit showing, "finish" refers to the overall condition and grooming of the rabbit, reflecting how well it has been cared for and prepared for presentation. This includes aspects such as the coat quality, body weight, and overall health, which all contribute to the rabbit's appearance and presentation in a show setting. A rabbit in good finish looks healthy, has a well-groomed coat, and presents a polished, complete image, making it more likely to score well in competitions.

The other choices refer to different attributes or conditions not directly related to the overall desired condition of the rabbit. For instance, "flabby" implies a lack of muscle tone, "flank" refers to a specific area on the rabbit's body, and "flat coat" describes the texture of the fur rather than its overall presentation and condition.