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

At a skating park a older gentlemen talks about skating while he is outside. he

Available choices: (I) is skating alone in a modern mall where many people are gathered.. (II) gets on his board and starts to skate all around the park looking pretty hip.. (III) picks up a handful of ice and lays it down on the ground, begins to skate slowly across it, keeping his skates parallel as he cuts his route across the tracks.. (IV) explains various things and the use of tools to skate..
(II)