Which policy aimed to provide a justification for U.S. intervention in Latin America?

The Roosevelt Corollary is the correct answer because it expanded upon the Monroe Doctrine, which originally aimed to deter European intervention in the Americas. The Roosevelt Corollary, articulated by President Theodore Roosevelt in 1904, asserted the right of the United States to intervene in Latin American countries to stabilize them if they were unable to maintain order or pay their international debts. This policy justified U.S. intervention as a means of preserving stability in the region, effectively positioning the U.S. as a police power in the Western Hemisphere.

This interventionist approach reflected the growing belief in Manifest Destiny, suggesting that the U.S. had a moral obligation to uphold democracy and order in its neighboring territories. The Roosevelt Corollary also set a precedent for subsequent U.S. actions in Latin America, reinforcing the idea that American interests could justify military intervention.

Other options, such as the Open Door Policy, primarily concerned trade relations with China, while the Treaty of Paris pertained to territorial gains after the Spanish-American War. The Monroe Doctrine laid the groundwork for U.S. foreign policy in the Americas but did not explicitly provide a framework for intervention as the Roosevelt Corollary did.