Final answer:
David implies that his father disapproves of Marie in light of Frank's crimes. The rhetorical question with negative connotations conveys his father's disapproval and disappointment in Marie effectively.
Step-by-step explanation:
David implies that his father disapproves of Marie in light of Frank's crimes. The rhetorical question with negative connotations suggests that David's father has a negative opinion of Marie. By asking the rhetorical question, David expresses his father's disappointment in Marie and highlights his disapproval. The rhetorical question is an effective way to convey disapproval because it prompts the reader to consider the negative implications of the question.