Although there are no specific options given in the question, still it can be answered. I hope it helps. Instead of using investments as a tool of United States foreign policy, Wilson's moral diplomacy hoped to promote U.S. interests by supporting the social and national well being of the people living in the Latin American countries.
A. European nations competed for land, trade, and military power.
Explanation: Industrialization and the emergence of bigger and stronger nations had caused competition between each other. The German and Italian Empire were recently established, as for the British and French were old empires with vast amounts of colonies. Austria-Hungary was already unstable and threatened small states in the Balkans which the Russian Empire backed them.