The correct option is C
Joseph Raymond McCarthy (Grand Chute, Wisconsin, November 14, 1908 - May 2, 1957) was an American Republican senator from the state of Wisconsin from 1947 to 1957. During his ten years in the Senate, McCarthy and his team were made famous for their research on people in the government of the United States and others suspected of being Soviet agents or sympathizers of communism infiltrated in the public administration or the army.
In January of 1953 and thanks to the republican majority, he obtained the presidency of the Permanent Subcommittee of Investigations of the Senate, where the appearances of officials of the administration began. Although he did not participate in the work of the Anti-American Activities Committee, a body dependent on the House of Representatives and whose activity dates back to the late 1940s and early 50s, it was its organizer and main promoter. This "witch hunt" for ideological reasons was contrary to the Constitution of the United States.