Answer:
Option (A)
Explanation:
The 49th parallel usually refers to the line of 49° latitude in the northern hemisphere. The main significance of this line is that it demarcates the boundary between the U.S and Canada. The word 'parallel' that is used here is an imaginary line that depicts the degrees of latitude surrounding the earth is parallel to the line of the equator. This line goes through places such as Asia, Europe, North America, the Pacific Ocean, and the Atlantic Ocean.
This line of 49th parallel is classified as an artificial or a geometric boundary.
Thus, the correct answer is option (A).
