Part A: The statement that best describes Mrs. Frank in Act I of The Diary of Anne Frank is C. She is gentle—trying to make the best of the situation.
Part B: The quotation that best supports this answer is C. “When Mr. Kraler comes, the sun begins to shine. . . . Wouldn’t you like a cup of coffee? . . . Or, better still, will you have supper with us?” This shows Mrs. Frank’s gentle and hospitable nature, as she tries to create a warm atmosphere despite the dire circumstances.