Over half of the African American population in the United States lives in the

In the South.

Explanation:

In 2010, nearly 39 million Americans, 13% of the total country figure, identified themselves as black alone. 57% of black alone populations lived in the South, according to the 2010 Census. Outside the South, black alone people tended to concentrate in large cities.

the answer is c i just put d and i got it wrong so yeah its d