Answer: I think it may be the first one
Explanation:
Well, a large reason is that England was a bit of a special case. Their monarch had a huge civil war which they lost, and so he was forced to accept terms of surrender, which formed the Magna Carta, outlining how the British constitutional monarchy was to be formed as opposed to a fully reigning absolute monarch.
There were a bunch of things that helped the American economy, but two would be, the huge American military that was built over the time of the war and the newly created Marshall Plan (which also helped many other nations)
They were against any culture except their own. Introverts