This was known as the "iron curtain." It was a term used to describe the boundary in Europe, which formed at the end of WWII and lasted until the ending of the Cold War.
B. The Wright brothers . . .

Answer:
Direct democracy
Explanation:
This is just my opinion, with a democracy based government you are taking the peoples opinions into account. One example of this is voting which happens normally now, you elect the person you believe is better to rule. Democracy is a fair and justified form of government.
Answer:
C
Explanation:
Minute men because they were ready to respond to a fight in minutes. They are also sometimes called the Minute Men Millitia.
Hope that helps