Answer:
The valley of Ashes is a massive trash dump full of smoke and from Nick's description it is a horrible place where you would not want to be.
Explanation:
It is vey realistic so I think it is realism.
1. I haven't read the story, can you post a link with it so I can help?
2. Well, first off theme is shaped by the character, setting, and even the plot of the story. Setting affects the theme in major ways! It contributes to plot and the characters. Without setting...there will be no plot for the story.
I believe the correct answer is D. Hope this helped!
-Twix