What is the most logical next event?

A woman on a beach begins to build a sand castle. a man

Pick from:
I. then comes and paper towels to create a kind of dragon flag that flies in the brisk wind in the background..
II. and a girl begin to build various castles together in their backyard while people go to the beach..
III. comes over and begins to build the sand castle with her..
IV. comes and picks up the sand castle..
III.