Answer:
She realized that being African was very important because she don't want to become African and she choose to becom American instead.
"I must say that before I went to the U.S., I didn't consciously identify as African. But in the U.S., whenever Africa came up, people turned to me. Never mind that I knew nothing about places like Namibia. But I did come to embrace this new identity,and in many ways I think of myself now as African." Adichie