In The Diary of Anne Frank, Act II, why does Mr. Frank let Anne, Margot, and Peter hear Mr. Kraler's story about the blackmail scheme? *

A. He knows that they will imagine something worse if they don't know the story.

B. He hopes they will have some ideas about how to deal with the blackmailer.

C. He is afraid the blackmailer will try to contact them.

D. He feels they should be aware that people are not always good.