Which was an impact of the united states acquiring the oregon territory?

a. it created more territory that allowed slavery.

b. it opened trade routes to the pacific.

c. it strengthened democrats' control of the presidency.

d. it led to war with mexico.

B. It opened trade routes to the Pacific.

Explanation:

In 1846 the Oregon Treaty was signed between the US and Britain to settle the boundary dispute. The British gained the land north of the 49th parallel, including the Vancouver Island and the United States received the territory south of the parallel.

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