I think it is "the natural world". This is because i have read many things where it says that they have a deep respect for the land and the animals they kill. These things are part of the natural world. So i am pretty sure it is the natural world they have great respect for.
<em>The key difference between a central idea and a motif is </em><em>b) A central idea is abstract, while a motif is concrete. </em>
A <u>central idea</u> of a literary work -the theme- is the dominant idea the author wants to conveys. <u>Motifs</u>, on the other hand, are all the devices the author uses to support that main idea, such as images, symbols or words. <u>Motifs</u> have a symbolic value and remind the reader about the theme.
I would have to say black, because it just fits with most creepy books. Sorry if you can't figure out an explanation.
The correct answer would be the third option, prosperous. This means it's successful and doing well :)