Multi-select problem: How does the next paragraph end?

Cars and rv's sit outside a rodeo center. Cowboys practice their lasso work. people

Options:
I. shop inside the store of the rodeo center.;
II. fence and get ready to ride the horses.;
III. in a stands checks for cow style holes where the cow may have scraped away the surfaces.;
IV. ride their horses through the rodeo center and the stores inside the gathering.;
I.