Answer:
D) alleged American communist influence inside the United States.
Explanation:
The crusade of Senator Joseph McCarthy was primarily directed against alleged American communist influence inside the United States. Red Scare was the name given to the crusade of SenatorJoseph McCarthy during the 1940s. He directed this crusade to alleged American communists in the United States. The communists were called "Red" because of the color of the communist flag. Federal employees, members of the press and the film industry were investigated.
