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

One man is explaining to another man how to use a rowing machine. One of the main starts to row on the rowing machine before the other. next

Select from:
+ , the other man joins the first man and starts to row.;
+ , another man shows how to do the rowing as a man like the one in the boat begins to prepare another on the lake pier.;
+ , the man makes out with another man while one woman walks onto the stage before dancing.;
+ , the men ride the rowing machines over a hilly terrain together.;
, the other man joins the first man and starts to row.