The 1818 Anglo American convention firmly established a geographic division between American and territories. A. Mexican B. Canadian C. Caribbean D. French

B. Canadian.

Explanation:

The 1818 Anglo-American convention or also known as the London Convention or the Treaty of 1818 was a bilateral treaty signed between the nations of America and the British territory in North America. This treaty signed on October 20, 18181 resulted in the 49th Parallel, a straight-line boundary that separates the United States and Canada.

This treaty was a result of the boundary issue between the United States and Canada, at that time, occupied by the British empire. This treaty became the solution/ resolution for the standing boundary issues between the two American nations.

Thus, the correct answer is option B.