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Which of these statements from The Diary of Anne Frank reflects a conflict between two characters?

Mrs. Van Daan: No! No! No! Don’t you dare take that! You hear? It’s mine!
Miep: It’s terribly difficult to get them, Mr. Van Daan. But I’ll try. Good-bye.
Mr. Van Daan: I left Margot out. I take it for granted Margot won’t eat. . . .
Peter: I suppose you miss your friends and all.