What does CD stand for in the context of AKC Obedience Rules?

In the context of AKC Obedience Rules, "CD" stands for Companion Dog. This designation refers to a specific level of obedience title awarded to dogs that have successfully passed a series of obedience tests designed to evaluate various skills such as heeling, staying, and retrieving. The Companion Dog title is often one of the first titles that handlers and their dogs can achieve in the world of competitive obedience, demonstrating foundational training and the bond between the dog and its handler.

This background is critical as it shows the importance of basic obedience as a foundation for further training and competition. The other choices, while they imply a relationship to dogs, do not accurately describe the title used in AKC's obedience competitions. Therefore, Companion Dog is the correct interpretation within this framework.