Developed in New Zealand in the 1990s, originally as a means of crossing water, zorbing involves rolling downhill in a large, PVC ball, and an activity which requires no more skill than that of a hamster running inside its wheel. The three-metre zorb has two skins, with the area between them inflated to provide effective cushioning and so prevent zorbonauts from hurting themselves as they hurtle along at speeds of up to 50 kilometres per hour. Zorbers are also harnessed inside the ball to stop them moving around. In 'Hydrozorbing however, you have to do away with the straps and slide around in a bucket or two of water. This version can be enjoyed alone, or you can share the experience with up to two other people inside the same zorb. But don't be surprised if you get the odd bump or bruise!
Zorbing is fairly safe because

Options

A. there is adequate cushioning in the zorbs.
B. it does not require much skill.
C. the PVC balls are airtight.
D. it does not demand any speed.

Answer

A

Explanation

there is adequate cushioning in the zorbs