Which geographical feature is described below?

It extends from central Alabama through Georgia, the Carolinas, Virginia, Maryland, Pennsylvania, and Delaware.

It is a wide, flat area with a rocky subsurface.

It is located between the Atlantic Coastal Plain to the east and the Appalachian Highlands to the west.

Gulf Coastal Plain

Piedmont Plateau

Great Plains

Great Basin

The Piedmont is a plateau region located in the eastern United States. It sits between the Atlantic Coastal Plain and the main Appalachian Mountains, stretching from New Jersey in the north to central Alabama in the south. The Piedmont Province is a physiographic province of the larger Appalachian division which consists of the Piedmont Upland and the Piedmont Lowlands sections