The United States kept to itself because it was following an isolationist policy at the time
Initially, Joseph McCarthy focused on an investigation into communism's influence on "<span>government and security," since this was thought to be the most dangerous to national security. He then shifted focus somewhat to the entertainment industry. </span>
<span>B.)panic and fear of black people in the Southern states</span>
The correct answer is d because caring for a nations relationship is important according to the article
