The answer could be that the author wanted to show readers how unjust, cruel, and incorrect prejudices can be. After the main conflict is resolved, the narrator goes on to prove how incorrect everyone's prejudices about the Duvitches were.
I read that book last year :)
Answer:
B. They allow the characters to reveal their emotions and opinions through dialogue.
Explanation: I took K12 test and got 100%
The answer is C) Isolated