Korea was the location of a proxy war that created protest and division in the United States.
What is Proxy war?
This is an armed conflict which is instigated by a major power which does not itself become involved.
Korea was the location of a proxy war between the United States and the Soviet Union which was why option A was chosen as the most appropriate choice.
Read more about Proxy war here https://brainly.com/question/3007141
