Please choose the correct ending to complete the given sentence: Pets and Animals: [header] How to train a horse to lead [title] Get a nice soft halter. [step] If you are teaching a young, you must first teach it to wear a halter. The halter (sometimes known as the headcollar) is the harness that you will place over the horse's head, around the muzzle and up over the poll and ears.

Ending1: Halter and head-collars are a good way to teach a horse to lead. [substeps] Allow your horse to stand but not to sit if this is the first time riding in a horse arena. Ending2: You can purchase halter styles that tend to work for you. [substeps] Most orders nowadays claim to require a large size halter, but no regard for this is in dispute. Ending3: You can purchase either a halter and a helmet or attach them to the bridle. A helmet is important for teaching a horse to lead and exerting pressure when doing so. Ending4: You can buy these at any horse supply or tack store, or you can always find one online. [substeps] Make sure you buy a soft halter, since hard poor quality nylon will rub and can cause sores on your horse's sensitive skin.

Answer format: ending1/ending2/ending3/ending4