Select THREE of Polk's objectives for his administration. 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.

he risk-return relationship. generally, the higher the potential return of an investment, the higher the risk. there is no guarantee that you will actually get a higher return by accepting more risk. diversification enables you to reduce the risk of your portfolio without sacrificing potential returns.

explanation: