The answer would be Adam smith.
Because they wrote exposes of unfavorable conditions in the cities and industry, which led to Progressive Era reforms.
Answer:
The partition between Eastern and Western Europe was know as the Iron Curtain and The collapse of communism in Eastern Europe and the Soviet Union brought an end to the Cold War.
Explanation:
Why the other two are wrong:
1. NATO was created against The Soviet Union by several Western European Countries
2. The city of Berlin was divided for only 30 years
Answer:
protect our borders can be the correct solution for saving our own life and our lovely country
