Answer:
B) show why they valued classic books before showing how Randall convinced them to update the books they assign
Explanation:
Rock and minerals are both considered to be natural substances and this is what they have in common.
It suggests that Groucho believes the writer of the original letter knows as little about the city of Casa- blanca (his history is filled with absurd details) as he knows about how different the Marx Brothers' film A Night in Casablanca would be from the famous Casablanca.
its B took the test and got it right :)
