Final answer:
Dee changes her name to Wangero to embrace her African heritage and distance herself from her family. This change reflects her attitude toward her family heritage as she sees it as outdated and not representative of her true identity.
Step-by-step explanation:
Dee changes her name to Wangero because she wants to embrace her African heritage and distance herself from her family. She believes that her given name, Dee, is associated with the oppressive history of slavery and wants to identify with her African roots. This change reflects Dee's attitude toward her family heritage because she sees it as outdated and not representative of her true identity.