Multi-choice problem: Continue writing the next sentence in this paragraph:

How to do a dive
Start about four feet back from the end of the board if you're a teen or adult, or further if you take large steps.
Stand in an upright position, back and legs straight.
When you're ready to do your approach, take three long steps, swinging your arms, together, in the same direction, as you walk.

Pick from: -Keep your hips and back muscles as loose and tight as possible. As soon as you're ready, do a 15-20 tumbling flicks with your arms and legs, keeping your elbows over your shoulders.; -When you're a teenager, complete three long steps, first, and then three slow steps. If you are a teenager, place two fingers parallel with the edge of the board, just below where your stomach would rest.; -Repeat steps 3-4, going backwards of course, this is often enough walking. If you're a teenager, you should start slow and gradually work up to longer stride length walking, and jogging.; -When you've taken your three steps, bring one leg up and hop to the end of the board. As you are doing this, keep your head and neck straight and looking forward.;
When you've taken your three steps, bring one leg up and hop to the end of the board. As you are doing this, keep your head and neck straight and looking forward.