The correct answer is C) Communist stataes.
The map shows the world after World War II. All of the shaded areas consist of communist states. These communist states consist of the Soviet Union itself and its satellite nations. Satellite nations were nations that were under the influence/control of the Soviet Union.
The eastern portion of the map, consisting of all communist nations, is separated from the western part of the map which consists of democratic and European nations. This imaginary line that separates these two areas is known as the "iron curtain."
