1. D. Iron Curtain
2. A. True
3. B. "NATO"
The answer would be C., Suversive activity.
Subversive activity refers to all willful acts that have the intention of being detrimental to governmental interests that don't really fall into the specific categories of; treason, sedition, sabotage... etc
I dont quite know what you mean but a major thing that happened then was the start of the french revolution which kick started many other revolutions in south america, Haiti, brazil, and Mexico but America was contemplating whether or not to help the french.<span />
This is the answer for you're topic and also I got this from my old computer history so yeah.