Predicate noun I believe is the correct answer.
Turbulent. You know how turbulence tosses the plane around in the air? the water was rough so she thought it would be dangerous <span />
The Kite Runner focuses nearly exclusively on male relationships. While the relationship between father and son is important to the novel, male friendship is central as well. Amir's relationship with Hassan is the most obvious example.
I would say the answer is "harbor". This word is usually used as a noun; but in this case, it is a verb that means to provide shelter to someone or something, to keep someone safe, but also to have something in mind and think about it. This word is purposefully chosen and fits into Whitman's well-intended, philanthropic and inclusive worldview.
The answer is C. to motivate Americans to strive for the development of their nation.