What actions might the United States have justified by the domino theory?

Plz which of the following statements about the french revolution is not accurate. a. all of france supported the revolution. b. the french revolution began a series of wars between britain in france that lasted more than 20 years. c. the fighting in europe that grew out of the french revolution threatened to draw the united states into the wars. d. other european nations went to war in france to restore the monarchy.