a
To keep Europeans from imperializing the United States.
b
To warn European powers not to interfere in the countries of the Western Hemisphere
c
To warn European powers not to interfere in the countries of the Eastern Hemisphere.
d
To outline what would happen if European countries interfered with countries in the Western Hemisphere.
because Monroe Doctrine was a treaty that agreed that States that the U.S. could use military force to get rid of European powers that entered and tried to conquer lands in the western hemisphere.