Under the Roosevelt Corollary to the Monroe Doctrine, President Theodore Roosevelt asserted that the United States

A.
had the duty to support democratic countries in conflict with fascist countries.
B.
must act as a good neighbor and not interfere in other countries’ affairs.
C.
must protect its sovereignty and refrain from joining international alliances.
D.
had the right to exercise police power and intervene in other countries.

D. had the right to exercise police power and intervene in other countries.