What was the “iron curtain” that winston churchill referred to?

The “Iron Curtain” that Winston Churchill referred id discussed below.

Explanation:

Winston Churchill had been the Prime Minister of Great Britain through World War II. It was Churchill who invented the phrase, Iron Curtain, in a 46s discourse he presented in Missouri. It points to the point that Eastern Europe was extra or scarce dominated by the Soviets.Iron Curtain, the administrative, army, and ideological blockade established by the Soviet Union after World War II.

The answer is b. queen elizabeth