Which was an impact of the United States acquiring the Oregon Territory?

A. It created more territory that allowed slavery.

O

B. It opened trade routes to the Pacific

O

C. It strengthened Democrats' control of the presidency

O

D. It led to war with Mexico

The correct answer is the option C.

Explanation:

In the 1844 U. S. Presidential election, the Democrats had called for expansion into both areas. After his election as president, however, James K. Polk supported the 49th parallel as a northern limit for U. S. annexation in Oregon Country. It was Polk's uncompromising support for expansion into Texas and relative silence on the Oregon boundary dispute that led to the phrase "Fifty-Four Forty or Fight!", referring to the northern border of the region and often erroneously attributed to Polk's campaign. The goal of the slogan was to rally Southern expansionists (some of whom wanted to annex only Texas in an effort to tip the balance of slave/free states and territories in favor of slavery) to support the effort to annex Oregon Country, appealing to the popular belief in Manifest Destiny.

Oregon is a state which was claimed by many including Great Britain France. Many English settlers and Native Americans were found in Oregon, hence Britain in order to claim it signed a Joint settlement treaty which was conceded by Oregon treaty where in Great Britain surrendered it to US and it was called 49 parallel.

Oregon allured many countries due to its exotic reserve of beauty and natural resources. It was place where agricultural products were highly sold. Lumber production was at its peak in Oregon due to low price electric power provided by the dams nearby, it developed steadily as a manufacturing state.

After this, American Mexican war sprang up which made US to acquire additional states.