Answer:
D: somewhat arrogant and a know-it-all.
Step-by-step explanation:
According to the excerpt given, the narrator talks about someone not grasping the meaning of something because he did not read as much history as the narrator. In a separate monologue, the narrator talks about having the knowledge of certain herbs.
In the two quotations above, Don Quixote's speech reveals that he is somewhat arrogant and a know-it-all.