Which country had the strongest claim to the Pacific Northwest or “Oregon country” in your opinion

Spain, Russia, Britain, and the United States all claimed rights to the Pacific Northwest. In 1818 British and American negotiators agreed that nationals of both countries could trade in the region; this agreement was renewed in 1827.

hope this helps!!:)

Explanation:

a big wall across the mexican border so no drugs, terrorist, or illegal immigrants can come through : )    

answer; i believe that the correct answer is (c) arctic tundra;