I'd say the correct answer is B, because 'in the desert is part of the subject/noun 'canyon', and modifies it, that is, refers to it, describes it in more detail.
Answer:
it is the jim crow laws as they are in the south
Explanation:
and it is about discrimination and segregation
Everyone shows up to the party, even people who were not invited. Most of the people don't even know who Gatsby is and how he looks like.
After the parties, people leave recklessly. There is a scene of a guy, called Owl Eyes, who crashes his car just a few seconds after he starts driving away. Furthermore, because he's drunk, he continues to drive it even after one of the wheels has come off.
B . They illustrate a strict adherence to social rules.