How does the dialogue in paragraphs 78-94 develop the plot of the story?

A. It reveals that Mr. White's wish has been granted but not in the way they expected.
B. It shows that the visitor is uncomfortable with what he has to say, even though he is
bringing a gift.
C. It suggests that Mrs. White is concerned about her husband and takes steps to help
him deal with the news he's received.
D. It shows the sergeant-major reappearing in the story and causing more problems
within the family