What is a secondary benefit of using a saddle pad?

The correct answer highlights that a secondary benefit of using a saddle pad is the reduction of wear and tear on the horse's back. Saddle pads serve several important functions in horseback riding, one of which is to provide cushioning and protection for the horse's back. They help to distribute the weight of the rider and the saddle more evenly across the horse's back, minimizing pressure points and friction that can lead to discomfort or injury over time. This essential layer of padding can prevent sores and promote better overall health of the horse's back during rides, particularly when engaging in activities that involve movement and stress on the equine body.

While the other options touch on various aspects of horse performance and care, they do not accurately represent the benefits provided by a saddle pad in terms of physical protection and comfort for the horse. The saddle pad primarily functions as a supportive layer, making option B the most appropriate choice.