Which of the following warned European nations to stay out of Latin america?

A. the American System B. the Tariff of 1828 C. the Monroe Doctrine

It was the Monroe Doctrine.

The Promulgation in 1823 by administrator James Monroe. Primarily, it admonished European colonies not to get engaged in civic affairs in Middle and South America.

C. The Monroe Doctrine. President James Monroe’s 1823 annual message to Congress contained the Monroe Doctrine, which warned European powers not to interfere in the affairs of the Western Hemisphere, and Latin America is part of the Western Hemisphere.