(A) It added that the United States must approve any treaty in Latin America.
(B) It added that all ports in Latin America must remain open to the US Navy
(C) ** It added that the United States would use military force to enforce the doctrine.
(D) It added that the US military could establish bases in any Latin American country
EXPLANATIONS BELOW
Concept note-1: -Pres. Theodore Roosevelt added the Roosevelt Corollary to the Monroe Doctrine in 1904, which stated that in cases of flagrant and chronic wrongdoing by a Latin American country, the United States could intervene in that country’s internal affairs.
Concept note-2: -The Roosevelt Corollary was an important addition to the Monroe Doctrine because it sent a message to European and Latin American nations. It stated that the U.S. would not tolerate European interference in the region and that the U.S. would police the area to maintain stability.
Concept note-3: -What was the main purpose of the Roosevelt Corollary to the Monroe Doctrine? To justify US military intervention in Latin America if necessary to forestall interference by European nations.