A、Be over the age of 18. B、Receive due instructions. C、Join a sports club. D、Pay for the rubber band. D

Have you ever heard of bungee jumping? It is a rather thrilling and breath-taking sport of leaping from a high place with a rubber band tied around some part of one’s body. The places you jump from can be a bridge, crane, tower, or even a cliff.
    As we already know, the modern day bungee was started in England by Oxford Dangerous Sports Club. It was later commercialized most successfully in New Zealand, although the name of the sport was changed into "bungy", instead of "bungee". Now it becomes more and more popular in other European countries, as well as in the United States and Japan, in particular, among young people who are looking for thrill and excitement.
    There are several ways to jump. The most common ways to attach yourself to the rubber band are by using a body harness, or a leg harness, that is, to tie the rubber band to your body, or to tie the rubber band to your legs only. If you’re jumping with just a body harness, you are afforded quite a bit of freedom to move around. Your arms and legs are free to move around. The rubber band will be attached to a point close to your belly. As you jump, you can do many flips on the way down. If you’re jumping with a leg harness, either one of your legs or both of your legs will be tied to the rubber band. The leg harness can really give you the feeling of flying. And it is especially favored for water touchdowns, and swallow dives. You take a nice leap away from the platform of a high place. Your arms stretched out wide, and soar like a bird down towards the earth.
    One more thing, if you intend to try bungee jumping, most countries require that you be over the age of 18, and join a bungee jumping club, or be properly and duly instructed for the sport.