Question

during the 1930s the united states followed a foreign policy of isolationism. which is the best example of that policy?
forbidding americans to travel overseas
building up the nations armed forces
avoiding alliances with other nations
favoring great britain over the rising power of nazi germany

Explanation:

Isolationism in foreign policy centers on avoiding entanglement in international affairs, especially formal alliances with other nations, to focus on domestic matters. Forbidding overseas travel was not a core U.S. isolationist measure in the 1930s; building up armed forces contradicts isolationism's focus on non-intervention; favoring Britain aligns with intervention rather than isolation. Avoiding alliances directly reflects the key tenet of 1930s U.S. isolationism.

Answer:

avoiding alliances with other nations