Final answer:
The statement is true. A map of South Carolina and a part of Georgia in the 18th century would contain the whole sea-coast, all the islands, inlets, and rivers.
Step-by-step explanation:
The statement is true.
In the 18th century, a map of South Carolina and a part of Georgia would indeed contain the whole sea-coast, all the islands, inlets, and rivers. These features were essential for navigation and trade in the region. The map would have included the barrier islands along the Atlantic coast, such as the Sea Islands, as well as the major rivers like the Savannah and Altamaha.