McCarthyism was successful because Americans feared
the Cold War.
all of the above.
McCarthyism was successful because Americans feared d. all of the above./The American fear of Communism made McCarthyism very successful. Joseph McCarthy was actually the senator from Wisconsin who eventually led the Red Scare. [ He significantly exaggerated communism and offered real answers as to why the Republic of China fell to communism. ]
There are no new answers.