Please choose the correct ending to complete the given sentence: Computers and Electronics: [header] How to get a horse in shape [title] After researching a good exercise program, write out a customized program for your horse a week at a time. [step] Remember to start small. [title] Trails are a great place to start.

Ending1: [step] Note down how it feels at the beginning to canter and even walk so your horse is on top during this time. Definitely remember to build up technique during this week. Ending2: [step] Think routes and destinations that are appropriate for your horse's size and the terrain you want to ride. [title] After you have done this talk with your horse. Ending3: [step] They help take the " boring " out of a really long ride, and the different terrain and obstacles are great for your horse, too. Some tips are listed here : [substeps] Walk up hills. Ending4: [title] Remember that studs are very demanding. [title] Before you go the gees go to your local horse show.

Answer format: ending1/ending2/ending3/ending4