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

A camera pans all around a heated pool and leads into a person climbing in a kayak and moving around the pool. several people

pick from the following. (a). are seen swimming around and hiding behind obstacles while throwing tennis balls.. (b). are in the water working and going surfing.. (c). seen riding kayaks around the pool as well as people swimming around and watching on the sidelines.. (d). are seen walking around on the side of the pool and begins paddling around the water..
(c).