Which breed is represented by the Jockey Club?

The Jockey Club is dedicated to the registration and welfare of Thoroughbred horses. Established in 1894, it serves as the breed registry for Thoroughbreds in the United States and provides essential services to the industry, including maintaining records of pedigrees, tracking race results, and promoting the Thoroughbred breed.

The Thoroughbred is known for its speed, athleticism, and versatility, making it a leading breed in horse racing. The significant role of the Jockey Club in overseeing and promoting the Thoroughbred breed highlights the importance of this organization in the racing community and equestrian sports in general. This strong association between the Jockey Club and the Thoroughbred makes this breed the correct answer.

In contrast, the other breeds mentioned do not have a similar organizational body focused exclusively on their registration and racing oversight, which makes them less relevant to the question about the Jockey Club.