PART A: The best answer is D. Mathilde is dramatic and concerned with how others view her; her husband is hardworking and content.
PART B: The quotation that best supports the answer to Part A is D. "It was the end, for her. As for him, he was thinking that he must be at the office at ten." (Paragraph 53)
This quotation emphasizes Mathilde's dramatic reactions and concerns about her situation, contrasting with her husband's pragmatic and content demeanor as he focuses on his responsibilities.