Final answer:
The British agreed to divide the Oregon Country along the 49th parallel after President Polk realized it was a practical solution, focusing instead on acquiring territories from Mexico. Option 2 -Gave up part of its claim to the Oregon Country
Step-by-step explanation:
In the Oregon Country conflict, the British did not blockade the Oregon coast, give up part of their claim, or require Canadians in the area to become U.S. citizens to make the U.S. back off its hard demands. Instead, the resolution of the conflict came in the form of the 1846 Oregon Treaty, where the British government, recognizing the difficulties of defending the territory and amidst concerns of the empire at large, finally agreed to divide the territory along the 49th parallel. This compromise was reached after President Polk, despite initially supporting the slogan "Fifty-four forty or fight!", realized that an agreement at the 49th parallel was the pragmatic choice, allowing for the annexation of the Oregon territory up to that point and focusing on other expansionist goals, such as the acquisition of territories from Mexico.