Why Was the Roosevelt Corollary Significant

Why was the Roosevelt Corollary significant?

A) It was at odds with the Monroe Doctrine in that it created alliances between the United States and European powers for various joint initiatives.
B) It asserted the right of the United States to intervene in Latin America to prevent the military involvement of other countries there.
C) It granted the United States the resources needed to fight in the Russo-Japanese War as a means of gaining control of Korea.
D) It released the United States from its role as an "international police power" and emphasized the need to focus on domestic concerns.
E) It canceled the debt various Latin American countries owed to United States banks and established new trade agreements between the countries.