I think the answer is B im sure correct me if im wrong.
The correct answer should be the worldwide system of stock markets.
It's actually a system of American stock markets and functions for the US economy. Historically some argue that it was based on a wall that protected from Indians, but it was more like a wooden palisade.It is the financial center of the US and the place of the NY Stock Exchange.
I think I c the answer mate ;)
T, because everybody knows that you can make your own goal by yourself, you dont have to depend on someone