The Iron Curtain referred to countries that Russia took over and acted as a buffer between Western Europe and Russia. Those nations included any country ending with -stan, Latvia, Estonia, and Yugoslavia.
The best option from the list would be that "A. <span>The U.S. purchased the Florida Territory from Spain and seven states were admitted into the union, since this was one of the few times that the US purchased land instead of taking it through force. </span>
B. senate, hope this helps :)
The radius of the circle is 196pi square feet
