Which word or words should be capitalized in this sentence?

well, the park may not be the greatest in north america, but it is nice.

a. park
b. north america
c. america

Which option is the most relevant piece of evidence for this claim

Why didn't van gogh knock on breton's door? it seemed imposing and a bit scary. it looked alarmingly middle-class. he couldn't find the door. he saw a book that he liked instead.

Can you guys me with the story things fall apart?