The Beat generation writers tried to defeat the clean-cut culture of post ww2 conformist America that was uptight and unnatural.
Answer:
b is correct. it uses the it's and its properly.
I would estimate that the first one is the answer.
I looked up the summary(s) for both the passages, and 'to build a fire' is about a guy who despite everything being against him, being persistent and dying because of his actions, while 'gumption' is about the hardships of african americans.
Of course, this is just my estimation.