The correct response regarding the influence of the Treaty of Ghent on the United States and Great Britain is: It encouraged them to settle as much of the Pacific Northwest as possible in order to claim it.
The Treaty of Ghent, signed in 1814, ended the War of 1812 between the United States and Great Britain. Following the war, both nations were interested in expanding their territories in the Pacific Northwest, leading to increased settlement and eventual negotiations over borders and claims in the region.