The Great Wall of China is an example of a wall used to protect a place.
The Berlin Wall is an example of a wall to keep two places separate, east and west Germany.
Answer:
She has not found peace in her romantic life, she has been hurt by love
The answer is a. An appositive is a noun or noun phrase that renames another noun right beside it. "a city on the Fox River" is renaming Aurora. Therefore, the right answer is a. Good luck.