The purpose of a climax is to add action in a story and keep your readers entertained. It is typically the most exciting part in a story, and it also might explain some things that happened in previous encounters.
The men lost all desire to return to their homeland.
The best answer is the first option:
<span>For seven nights, he sneaks into the old man’s room and watches the sleeping man.
A good way to select the right answer is to read all of the options out loud. Which combination of the sentences sounds the most fluid and logical when you read it, and best preserves the meaning of the sentence? The first option does this best. </span>