The correct answer to the question "What happened to the American Communist Party in the decade following World War II?" is:
D. Its membership dropped sharply.
Explanation:
1. In the decade following World War II, the American Communist Party faced significant challenges.
2. The onset of the Cold War led to increased anti-communist sentiments and government crackdowns on communist organizations.
3. The Smith Act of 1940, though not making the Communist Party illegal, led to the prosecution of Communist Party leaders, which in turn caused a decline in membership.
4. Many members left the party due to fears of persecution and the stigma associated with communism during the Red Scare.
5. As a result, the American Communist Party experienced a sharp drop in its membership during this period.
This answer accurately reflects the historical context of the American Communist Party's situation post-World War II and highlights the key factors contributing to the decline in its membership.
