Answer:
The sentence from the passage that supports the idea that Don Quixote deals with unusual or taboo topics is:
"Don Quixote's delusions and misadventures challenge the traditional norms of chivalry and reality, making it a groundbreaking and controversial work."
This sentence suggests that Don Quixote tackles unconventional and potentially taboo themes, such as delusions and misadventures, which were considered outside the norms of society at the time the book was written.
Step-by-step explanation: