Please choose the correct ending to complete the given sentence: Pets and Animals: [header] How to do a flying lead change [title] Get your horse warmed up and ready to ride. [title] Place a single trot pole in the center of the ring or riding area, parallel to the long side. [title] Practice a lot of figure eights at the trot.

Ending1: [title] Continue trotting from this pole for a minute to get used to it. [title] When your horse is comfortable with it walk to his side. Ending2: [title] Kick! [step] The horse should kick forward from the ground. When the horse turns, kick the leg to that other side. Ending3: [step] Some horses are not always trained to do flying lead changes. To train the horse, start by doing figure eights; canter one circle, slow down in the center to a walk, then go the other direction at the canter. Ending4: [title] When you reach the trot, bring the back of the horse in parallel to the lead pole. [title] Last, loosen the reins and bring them over the front knee.

Answer format: ending1/ending2/ending3/ending4