A, Control inflation through monetary policy.
The answer is choice A. During the Cold War, the goal of the US was to was to isolate the Soviet Union from spreading Communism, encourage Democracy and to promote open markets for the US goods to prevent another depression.
Truman's loyalty plan was to ferret out Communist in every place in American Society, It included the media, government, and business. In the long run it was seen as the red scare. There was a Communist everywhere, and they where no tAmerican. lol I just learned that yesterday.
The united states eventually stop supporting South Africa because : South Africa began taking arms and funds from the soviets.
Back then, United States was in the middle of cold war with the soviets union, and this showed that Soviet has implemented its influence in south africa
Hope this helps