Which document served as a warning to European nations to not try and re-colonize Latin America and established the U.S. as a protectorate of the Western hemisphere?

AMonroe Doctrine
BAmerican System
CNonintercourse Act
DAlien & Sedition Acts

Verified Answer :

Which document served as a warning to European nations to not try and re-colonize Latin America and established the U.S. as a protectorate of the Western hemisphere?
A). Monroe Doctrine

The answer is Monroe Doctrine.