This is a test of commonsense with single/multi-choices. Complete the next sentence:

A couple of men are on the side of a bike path. they

Options are:
1). draw flags onto the ground.
2). are using a red tool to play a game of tug of war.
3). are unsure of how to focus, or if they should continue exercising.
4). are trying to work on fixing a bent tire.
The answer is:
4).