"The Roosevelt Corollary" is the one policy among the choices given in the question that establishes the right of the United States to act as a policeman in the Western Hemisphere. The correct option among all the options that are given in the question is the first option. I hope that the answer helps you.
Roosevelt Corollary to the Monroe Doctrine Good Neighbor Policy was the policy that establishes the right of the United States to act as a policeman in the western Hemisphere.
