Which of the following is a rail class where horses are shown in a group, are not to jump and whose gaits show potential of being a hunter shown over fences?

The correct choice is the class that focuses on horses being shown in a group without jumping, specifically emphasizing their gaits and suitability for a hunter discipline. Hunter under saddle is designed to evaluate the natural gaits of a horse, assessing movement and suitability for the hunter discipline. In this class, horses are judged on their ability to move freely and gracefully, which reflects the characteristics desired in a hunting horse that would perform well over fences in a jumping scenario.

This class allows for a closer examination of the horse's conformation, fluidity of movement, and overall presence, all critical aspects for a horse that may participate in jumping events in the future. This situational evaluation aids judges in determining which horses have the most potential for future training and success in hunter jumping events, focusing on how they perform when not jumping over fences.

In contrast, other classes like equitation over fences are oriented around the rider's performance while jumping, and showmanship emphasizes the handler's ability to present the horse on the ground without evaluating its motion as it would occur under saddle. Western pleasure, on the other hand, showcases horses under a different set of standards relevant to Western riding disciplines, with a focus on smoothness and control rather than the specific gait evaluation pertinent to a