What is the most logical next event?

A man is standing next to a bicycle on a pole. He moves two tires off a box. he

pick from the following.
[1]. uses the gate on the bike to open it.
[2]. pushes the handle bars across the tires to tighten them into place.
[3]. grips a jack hammer and screws it on.
[4]. starts assembling the bike and putting the tires on the bike.
[4].