The detail that shows Julia's feelings about her name are still complicated, but less painful is:
D. "Someday, the family predicted, my name would be well-known throughout the United States. I laughed to myself, wondering which one I would go by." (Paragraph 32)
This reflects a shift in her perspective, indicating a sense of acceptance and even optimism about her name and identity, suggesting that while there are still complexities, the pain associated with it is lessened.