The St. Lawrence River serves as a border between the Northeastern United States and Canada. The St. Lawrence River is located in the middle latitude of North America. It is a large river that flows north-easterly direction. It serves as an international boundary between Canada, Ontario and US.
The St. Lawrence River serves as a border between the Northeastern United States and Canada. Thus the correct answer is C.
A border is referred to as a line of control usually drawn to separate two countries, states, as well as cities. Usually crossing the borders of states does not require permission whereas crossing international borders requires some procedure to get followed.
The St. Lawrence River and Seaway is essential to the Great Lakes system, integrating the bodies of water to the Atlantic Ocean and enabling ocean depths ships to navigate.
With its geographic location position and physical characteristics, the St. Lawrence River plays an essential role in the development of the social and economic assets of Canada as well as the United States.
Therefore, option C St. Lawrence River is appropriate.
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