What types of exploration have people done in the Southern Atlantic states?

The Southern-Atlantic states are one of the nine Census Bureau Divisions within the United States. The states that comprise this division are Delaware, Maryland, Virginia, West Virginia, North Carolina, South Carolina, Georgia, Florida, and the District of Columbia. Historically, the first state to be explored was Virginia, which was established at Jamestown in 1607. The first record of exploration in Virginia was performed by DeSoto in his trip from 1539 to 1543. A map of the record of that exploration is shown in an attachment.

Explanation:

can you show the map , i'll be able to update my answer

i am pretty sure it is d.