Which of the following best describes the term "conformation" in horses?

The term "conformation" specifically refers to the physical structure and form of a horse. This encompasses various aspects such as the horse's bone structure, muscle development, and the overall symmetry of its body. Good conformation is crucial as it can significantly influence a horse's movement, agility, and ability to perform various tasks effectively. Proper alignment of the legs, the shape of the back, and the balance of the body all play roles in determining a horse's athletic capability and soundness over time.

Options that relate to breed history, performance records, or temperament do not align with the definition of conformation. While breed history may influence conformation characteristics, it does not define it. Similarly, a horse's performance record reflects its achievements in competition rather than its physical makeup, and temperament describes a horse's behavior and disposition, which again diverges from the concept of physical structure. Therefore, identifying conformation as the horse's physical structure and form is essential for understanding its suitability for various disciplines and its overall health.