Dramatic irony happens when the audience understands a situation but the character involved does not. Twain often used this device to convey humor. In this excerpt, the sentence, “But not knowing what the trouble was, I couldn’t help him” is humorous because
A. Twain was widely regarded as a profitable and knowledgable farmer.
B. Twain was quickly becoming bored by the elderly gentleman’s complaints.
C. the elderly gentleman was clearly frustrated that Twain knew nothing about agriculture.
D. the elderly gentleman was trying to disguise the fact that he envied Twain’s position.