Multi-choice problem: Continue writing the next sentence in this paragraph:

The man in grey along with his partner begin to apply a coating on the wall together. the man in grey watches

Pick from:
[1]. the two men apply the coating to the wall harder.;
[2]. off into the distance.;
[3]. and gives tips to his friend.;
[4]. the other man putting wax on the wallpaper.;
[3].