Which of the following contributed to the Red Scare of 1919-1920?1. the dissolving of the Union of Soviet Socialist Republics (USSR) and the rise of a provisional government in its place that sought to entirely undo communism2. the failure of the Justice Department to establish any sort of General Intelligence Division to collect information on radicals in the United States and to promote public safety3. the support that the United States had given to the Central Powers throughout the war, which included Russia and its allies4. the violent actions of militants in the United States and the belief that the Bolshevik Revolution in Russia had spread to the United States, causing the wave of labor strikes and race riots

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