What happens next in this paragraph?

A couple of small children are playing with a tub. They are using an old wash board in the water. they
Available options:
[+] rub clothes up and down the board, pretending to wash them.;
[+] wash all around the sink.;
[+] use the dirty water to wash a wooden floor.;
[+] use scissors to poke holes into the bottom of the tub.;
rub clothes up and down the board, pretending to wash them.