Answer:
Based on the excerpt, what best describes the duke's impression of people in this part of Arkansas is: he thinks they are not intelligent.
Explanation:
The passage we are analyzing here is from the novel "Huckleberry Finn," which is narrated by the homonym character, a young boy who escapes his abusive father. The author is the famous American author Mark Twain (1835-1910), whose humor and narratives are extremely famous all over the world.
In the passage, we can tell the duke is judging the people of Arkansas as being intellectually inferior. Notice the word choice in "low comedy" and, even worse, "lunkheads". A "lunkhead" is a slow-witted person. The duke thinks those people are not intelligent, which is why their choice of entertainment is "low", inferior.