What information must be provided to the racing secretary for a horse entry?

When submitting a horse entry to the racing secretary, it is essential to provide all identification and ownership details. This information is crucial because it verifies the lawful ownership of the horse and ensures that all participants in the race are legitimate and properly registered. The identification details usually include the horse's name, breed, age, sex, and physical description, which helps in accurately identifying the horse on race day.

While the horse's racing history, the trainer's personal history, and veterinarian approvals are important aspects of horse racing overall, they are not primary requirements for entering a horse into a race. Identification and ownership details ensure compliance with regulatory requirements and maintain the integrity of the sport, making this the correct choice.