Early in the novel, Tom's Aunt Polly says the following: "I ain't doing my duty by that boy, and that's the Lord's truth, goodness knows. Spare the rod and spile the child, as the good book says. I'm a-laying up sin and suffering for us both, I know." What is Aunt Polly's speech an example of? A. Twain's use of humor B. Twain's use of dialect C. Twain's use of theme D. Twain's use of satire