The correct answer is D)foreign-born people he considered radicals, especially anarchists and communists.
After World War I, America went through a period of fear of communists and anarchists. Much of this was due to events in the Western Hemisphere (like the Russian Revolution). Afraid of a government overthrow, Attorney General Mitchell Palmer ordered the raiding of over one thousand homes on New Year's Day of 1920. This raid primarily focused on individuals who might pose a threat to the current American government.