Multi-select problem: How does the next paragraph end?

How to teach a bulldog to skateboard
Find the right skateboard.
The board should be at least an inch wider than your dogs normal stance. Use one with older ball bearings-you want your board to travel about a meter with each push.

Options are:
1). Introduce your dog to the skateboard. Begin with putting your dog in a carpeted room with the skateboard.;
2). Above all, have the board's axis facing away from the dog. With the board about an inch from the dog's feet, start spinning it.;
3). The extra height will influence your point of view. 10 or 20 meters is a perfect size for both you and your dog.;
4). Much less width can cause injury to your pup. Do not let your elbow get too close to the brake pedal.;
1).