"Beginning in the 1930s and lasting into the 1940s, black Chicago experienced a cultural renaissance.... Chicago had become a major destination for black southern migrants.... It was also an urban industrial center. This fact gave a unique working-class and internationalist perspective to the cultural work that would take place there....
Which of the following most likely contributed to the decline of the 'political radicalism' referred to in the excerpt?
A) Economic prosperity and stability
B) Suppression by authoritarian regimes
C) Emergence of moderate political ideologies
D) Shift towards conservative values and policies