Answer:
B. The separation of Europe into a free west, and a Soviet-controlled east
Step-by-step explanation:
The term "Iron Curtain" was used to describe the ideological and physical division between Western Europe (which was mostly democratic and aligned with the United States) and Eastern Europe (which was under Soviet influence and control) during the Cold War.
The Iron Curtain symbolized the sharp divide between the two blocs, with limited communication and movement between them. This division was characterized by political, economic, and military tensions, as well as the presence of physical barriers such as the Berlin Wall.