Select three areas dealt with in Polk's objectives. Lower the nation's tariffs. Settle ownership of Oregon. Restore the nation's treasury system. Purchase Texas from Mexico.

The correct options are Lower the Nation's Tariffs, Restore the Nation's Treasury System and Settle the Ownership of the Oregon.

Explanation:

The correct three options are as

Lower the Nation's Tariffs

Restore the Nation's Treasury System

Settle the Ownership of the Oregon

There were total four objective of James K Polk out of which three are as indicated above, while the fourth one was to acquire California and its harbours from the Mexico, which is not mentioned here.

american troops were forced to withdraw following deadly bombings.

explanation:

its main object was the establishment of "settlement houses" in poor urban areas, in which volunteer middle-class "settlement workers" would live, hoping to share knowledge and culture with, and alleviate the poverty of, their low-income neighbors.