What exactly is the name of the book?
Answer: b because it is correct
You would change the comma after therefore to a semi colon.
Answer:
<h3>Dystopias are often characterized by dehumanization, tyrannical governments, environmental disaster, or other characteristics associated with a cataclysmic decline in society. Dystopian societies appear in many fictional works and artistic representations, particularly in stories set in the future. </h3>