The visual aid that best enhances a speech about the popularity of sports around the world is C: a graph that shows the most-watched sports around the world. This is the best answer because it takes into account several sports and not only one. Moreover, it shows the popularity of these sports around the world (the most-watched ones).
It has some kind of artifact the hero needs to retrieve,It has a beginning middle and end,and the hero faces some kind of danger along his path. <span />
