This was called the "Iron Curtain" given it's name by Winston Churchill.
Not quite sure but I think it is B.
Hope that helps.
The correct answer is c.: it served as the be boundary between North Korea and South Korea. The current line is in a similar place, but it's not a straight line, unlike the line running along the 39th parallel.
Lots of industry hdhsfhhfhfhfhdhdhdhhdbdbjdjdh
Answer:
The subjective component of social problems
Explanation: