According to this map, the oregon territory
a) was acquired from britain.
b) remained in foreign control.
c) was purchased because of the mexican war.
eliminate
d) was part of the texas annexation of 1846.

It is A.) Was accquired from Britain. Britain had the James Cook exploration of the Columbia River.  In 1846 they both made a Treaty to cede the territory to the U.S. The U.S. had the C and L( Clark and Lewis) exploration in 1804.

Brainliest Plz??

b is correct

have a cool day

a system of cooperative federalism emerged, as the powers of the federal government expanded.