Answer:
b) He believes that they are not intelligent
Step-by-step explanation:
This is the excerpt from Mark Twain's "The Adventures of Huckleberry Finn".
The Duke's opinion of the Arcansas people can be easily deduced from several hints.
First, he calls them lunkheads, which is pejorative name for unintelligent people. Then, he states they can't come up to Shakespeare. This, on its own, doesn't mean bad thing, but considering Duke's low opinion of them, it can be regarded as an insult.
Finally, he states they want low comedy which means that he consideres them to be primitive and dull.