Answer:
The correct answer is 4. McCarthyism of the early 1950s resulted in damage to the reputations of many innocent people.
Step-by-step explanation:
McCarthy relentlessly pursued communists and people suspected of having communist sympathies. This happened especially in the period from 1950 to 1954, when there was a strong anti-communist mood in the United States, during a period when the US government and parliamentary majority actively opposed communism in the United States, often in illegal ways.
Among the many celebrities affected by McCarthyism were actor Charles Chaplin, conductor Leonard Bernstein, writer Dashiell Hammett, singer Lena Horne, playwright Arthur Miller, physicist Robert Oppenheimer, chemist Linus Pauling, activist Paul Robeson, musician Pete Seeger, journalist William L Shirer and director Orson Welles.