Please choose the correct ending to complete the given sentence: Pets and Animals: [header] How to make a horse run faster [title] Set up a training schedule. [step] You can condition your horse just by running it regularly. However, setting up a plan for how you want to train your horse can help you measure her progress and keep you on task.

Ending1: [substeps] Horse horses do need a lot of rest. If you want to train your horse, your first goal will be to slow down slowly at first. Ending2: [substeps] Determining your horse's pace and endurance will let you know if she's broken through the first part of her training routine. Practice walking, running with her, or even taking her out running barefoot or riding in the mud. Ending3: [substeps] Don't practice just for fun. Put the effort into having your horse run, and keep a positive attitude. Ending4: [substeps] Keep your training consistent for the first eight weeks. For example, you may want to run your horse every day for this first phase.

Answer format: ending1/ending2/ending3/ending4