"What happened to 'Dee'?" I wanted to know.

"She's dead," Wangero said. "I couldn't bear it any longer, being named after the people who oppress me."

What is symbolized in Wangero’s rejection of her given name?

The freedom to choose her own destiny.
Her loyalty to her new boyfriend.
Her desire to appear more educated than her family.
A desire to disassociate herself from her upbringing.