Question

during which decade did the us pursue a policy of isolationism?
1910s
1920s
1930s
1940s

Explanation:

After World War I, the U.S. embraced isolationism to avoid entanglement in European conflicts. This stance was strongest in the 1920s, with policies like refusing to join the League of Nations and passing restrictive immigration laws. The 1930s saw some shifts as tensions rose pre-WWII, while the 1910s included U.S. entry into WWI and the 1940s involved full participation in WWII, ending isolationism.

Answer:

B. 1920s