The imaginary line that separated Communist countries from free countries in Europe was called “the Iron Curtain.” Thus, option (a) is correct.
What is “the Iron Curtain.”?
The military, political, and intellectual border that separated the West from other noncommunist regions in 1945 at the close of World War II is referred to as the “Iron Curtain.” Iron is used to denote anything that is difficult to reach.
The countries of Eastern Europe under the communist Soviet Union's rule were divided from the democratic nations of Western Europe by the “Iron Curtain,” an imaginary border.
Around the end, tensions along this fictitious line would rise in the middle of the 20th century.
Therefore, option (a) is correct.
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