is the policy remaining apart from the affairs of other nations A Detente
B. Truman Doctrine
C. Isolationism
D. Globalization
E. Marshall Plan

"A policy of remaining apart from the affairs or interests of other groups, especially the political affairs of other countries. 'In the 1930s, American politics were characterized by isolationism in foreign policy and a preoccupation with internal affairs. ''"

Explanation:

were at first enthusiastic in support of the revolution. however, over time divisions of opinion became apparent between federalists and anti-federalists