Answer:
Correct answer is C. The resignation of Mikhail Gorbachev
Explanation:
Option A is not correct as this treaties are important for the limitation of weapon arsenal, but didn't lead to end of Cold War.
B is not correct as the defeat of US in this war showed that Communism is still alive.
C is correct as after his removal Soviet Union was dissolved, which led to end of Cold war.
D is not correct as China was opened towards the west even during the Cold war.
I believe the correct answer would be strong/strength, because fort means strength.
Poland, is the first country because they had wanted to get through Europe without being in too much conflict
Answer:
People, Environment , and patterns seems to be correct
Letter C is the correct answer:D