You can summarize and paraphrase or directly quote.
To directly quote, use parentheses to separate the citation from the text. Then place the author's name or the name of the source inside, and if it is a book, include the page number(s). Hope this helps!
-Dylan (AKA Animus)
In this passage, Nick reflects on what the landscape must have looked like when the Dutch explorers arrived to the continent. He is looking at Gatsby's house, and at this point in the novel, we know that Nick believes that New York, as well as the people he has met, are vile, corrupt and greedy. He contrasts this view with that of the pristine continent on the arrival of the European settlers.
The phrase "fresh, green breast of the New World" presents a view that is "fresh." The land is new, but it is also fresh in the sense that it is not rotten. The land has not yet been "infected" with the corruption of modern times. Therefore, the phrase is intended to represent a time before America had become a land of greed and vice.
This question is mostly interpretative. However, the majority could agree that the most appropriate answer would be C, as the figurative language and imagery used by the author are used in a manner that they're descriptive enough to keep the suspense of the scene, but not long enough to distract the audience from the events of the plot.