What is the meaning of the title "Night"?

Line 1 of this excerpt features a strong example of

Ineed . the passage implies that: a. most jury trials involve violent crimes b. jurors may be surprised by how stressful being in a jury is c. a trial by jury is not a fair way to judge a person’s guilt or innocence d. the people who take jury duty least seriously are the ones who find xperience most stressful

What does jack london mean when he wrote "to build a fire"