Final answer:
Document C indicates that the Palmer Raids, led by A. Mitchell Palmer and J. Edgar Hoover, were a reaction to the fear of radical ideologies and aimed to prevent perceived threats to the government, involving questionable legal tactics that eventually discredited Palmer.
Step-by-step explanation:
Document C suggests that the Palmer Raids were a response to the growing fear of socialism and anarchism after World War I. Attorney General A. Mitchell Palmer and his assistant J. Edgar Hoover led these controversial government actions, which involved targeting labor organizers, leftists, and political dissidents suspected of having radical ideals. The raids, involving illegal surveillance and questionable legal practices, aimed to address the widespread 'Red Scare' and suppress any potential threats to the government and social order.
The subsequent public and legal backlash highlighted the raids' overreach and contributed to a greater skepticism towards the alleged dangers posed by these radical groups, eventually discrediting Palmer.