The Vietnam War Can Be Understood as

The Vietnam War can be understood as

A) an example of how even a great power may not be able to prevail against a determined enemy unless there is a clear objective and the national will to do so.
B) an example of the doctrine of containment,because U.S. involvement was designed to prevent the fall of South Vietnam to the communists.
C) a war that deeply divided the United States and fostered cynicism toward the American government.
D) All of these are correct.
E) None of these is correct.