How are the details about Mie's interest in the red cranes important to the development of a central theme in the passage? A. They suggest that Mie will not listen to her parents' advice because she has a strong personality. B. They reinforce the idea that Mie remains idealistic despite her mother's cautious realism. C. They highlight the dangers of Mie's unrealistic expectations about her future. D. They emphasize the importance of Mie's decision to follow a cultural tradition.