Answer:
C. The United States accepted the 49th parallel as the border of the territory is the correct answer.
Explanation:
The treaty between United states and United kingdom singed under president James K. Polk on June 15, 1846 in Washington D.C is called Oregon treaty. It solved the Oregon boundary dispute and settled the British and American claims over the Oregon country as both the countries had jointly occupied the area since the Treaty of 1818. The area was inhabited by Native Americans. The treaty set the 49th parallel as the border line between the British North America and U.S.
