What happens next in this paragraph?

How to operate a wheelchair safely outdoors 
Stay on even surfaces. 
Uneven surfaces can make any wheelchair get off balance. Even when someone is pushing a wheelchair, an uneven surface can cause harm.
Pick your answer from: i. Try to stay within an even surface if you're able to. Avoid climbing or leaning on bare rocks or concrete.. ii. When you're walking around with someone, always make sure that you stay on a flat surface without access to a handrail. That way, you can avoid debris that might injure someone in the event of a fall.. iii. Make sure you stay on this surface and do not place yourself in harm's way. Wear protective clothing when you use your wheelchair.. iv. Users and caregivers alike need to stick to slopes that only go up to a gradient of 20% and are dry, solid, and straight. Avoid inclines, slopes, staircases, and curbs..
iv.