Why was America becoming Isolationist--not wanting to be a part of what was going on in Europe?

Overall, Americans during this time supported isolationism because they did not want to be drawn into more destructive wars that were not really any of the U.S. business. ... - Hoped to stay in the work force after the war but when the war ended most female war workers lost their jobs.

Explanation:

During the 1930s, the combination of the Great Depression and the memory of tragic losses in World War I contributed to pushing American public opinion and policy toward isolationism. Isolationists advocated non-involvement in European and Asian conflicts and non-entanglement in international politics.

answer; (b) they could make more trips;