Complete the paragraph about the acquisition of the Oregon Territory.

The United States was locked in a border dispute concerning the Oregon Territory with ____. The disagreement would have broken out into war. But President James Polk made the decision to negotiate further and settle for a compromise. Finally, the border between the United States and Canada was set as the ____ parallel.

A. France
B. Mexico
C. Britain

A. 40th
B. 49th
C. 48th