How Has the Transformation of American Metropolitan Areas Impacted Central

How has the transformation of American metropolitan areas impacted central cities?

A) Central cities have lost some of their prominence as the social, economic, and political focal points of their areas.
B) Central cities have begun mimicking the social, economic, and political structures of the suburbs.
C) Central cities have experienced a large influx of residents from suburban areas.
D) Central cities have regained their prominence as the social, economic, and political focal points of their areas.