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

A window cleaner in sneakers and a beanie is hanging up and cleaning a window with a towel, with other cleaners behind him hard at work. he

OPT:
1). lowers himself down to another section of the window and wipes it with a blade.
2). walks away from the window and continues to wipe the glass clean with his towel.
3). stops and drinks his soda before going over to add cleaner and smiles as he's finished.
4). sprays paint on the outside of the window and starts using a pink brush to apply the paint around the pane.
The answer is:
1).