The phrases “all manner of pretty pictures” and “most

The phrases “all manner of pretty pictures” and “most dead-earnest of reading-matter” emphasize the idea that A.Twain believes that the passengers are not as smart as he is. B.Twain wishes that the passengers could see the river the way that he does. C.the passengers and Twain perceive the river in very different ways. D.the passengers are able to understand the river in a way that Twain cannot.