Which of the following gaits is a natural, flat-footed, four-beat gait?

The walk is indeed a natural, flat-footed, four-beat gait commonly exhibited by horses. In this gait, each hoof touches the ground separately and in a specific rhythm. The sequence consists of the horse moving one leg at a time: the left hind leg, followed by the left front leg, then the right hind leg, and finally the right front leg. This results in a steady and smooth movement that is easy to recognize.

The walk is characterized by its relaxed and natural movement, allowing the horse to travel at a slow speed without the need for special training or conditioning. This gait is fundamental to a horse's locomotion and is often the first gait learned by young horses. Understanding the characteristics of the walk helps in recognizing the importance of basic movement in equine training and movement patterns.