Which of the following best describes the border between North and South Korea?(1 point)
It is a border between countries at war that is marked by a natural physical barrier.
It is a border between countries at war that is marked by a natural physical barrier.
It is a militarized border because of an unresolved conflict.
It is a militarized border because of an unresolved conflict.
It is a long, open border marked by a buffer zone.
It is a long, open border marked by a buffer zone.
It is a frontier without an actually defined border.