A long-term result of the Monroe Doctrine was that the United States A. became involved in Latin American affairs.
B. removed itself from involvement in Latin American affairs.
C. became involved in European affairs.
D. removed itself from involvement in European affairs.

D. removed itself from involvement in European affairs.

Explanation:

The Monroe Doctrine was based on the statement issued by former United States President, James Monroe to Congress in 1823. The statement is centered on the foreign policies of the United States which stated that the United States will not influence the affairs of Europe, and in return, the Europeans will not influence the affairs of the whole of North and South America.

Hence, a long-term result of the Monroe Doctrine was that the United States "removed itself from involvement in European affairs."

increasing defense spending.

explanation: