Option C, Roosevelt was concerned European countries would take action if the Dominican Republic failed to pay its debts, is the right answer.
The Roosevelt Corollary was an extension of a previous idea to the Monroe doctrine. While the main idea of Monroe's doctrine was to prevent European's intervention in the Western Hemisphere, the Roosevelt corollary was practiced to support America's invention throughout the Latin American countries. President Roosevelt declared that European powers would not be permitted to collect the debts by force, owed them by Latin American countries