Answer:
was partly motivated by a series of bombings.
Explanation:
Red scare of 1919 was a threat of spreading communism in American society. It was partly motivated by a series of bombing by anarchists who found to be followers of Luigi Gelleani. The events like the Bolshevik revolution in Russia and anarchist bombing in the United States alarmed the forefather of the country about the potential threat of communism and anarchism.