The correct answer is the St. Lawrence River. To get the answer to this question, you would need to have some basic geographical knowledge. The Great Lakes are located in the eastern part of North America, between the United States and Canada. The St. Lawrence River is a large river that connects the Great Lakes to the Atlantic Ocean. It provides a convenient waterway for transporting goods from the Great Lakes region to the coast. Therefore, the St. Lawrence River is the correct answer.
