Answer:
D
Explanation:
McCarthyism occurred during the Red Scare in America, it was the act of accusing people of being disloyal to the United States in favor of communism; basically accusing people of treason. There was never any proof to back these claims, it was an act of mass hysteria and fear of communism.
Constitutional and party officers are both in congress to keep order in the house to make things less chaotic.
They keep things in order through party affiliation and party caucuses meeting to elect their leaders both from the House and the Senate.
Answer:
The rise of communism in any country was a danger to it's neighbors.
Explanation:
Domino theory has been highly influential in US foreign policy. The war in Vietnam is a perfect example.