Answer:
The first child of English settlers was born there.
Explanation:
The 38th parallel is a “popular name given to latitude 38° N that in East Asia roughly demarcates North Korea and South Korea.” (Source: Britannica.com)
William Penn, who was the first governor of Pennsylvania, founded it on the principles of it being a place where people of different religions could come and not be persecuted. So B would be the most likely answer to your question :)
It was the Truman Doctrine.
The Iron Curtain was the metaphorical barrier that seemed to split the Eastern Bloc from Western Europe. It was first mentioned by Churchill. The Berlin Wall was the physical embodiment of this "Curtain" that was constructed by the USSR to prevent Eastern Europeans from migrating. The Marshall Plan sent $13 billion to European nations to help them rebuild after WWII. The Truman Doctrine was specifically put in place to contain communism by aiding nations that were "at risk" so they would not turn to communism to solve their problems.