I believe the answer is: B-it was located at a crossroad for trade between Asia and Europe
This location massively contributed to the vast amount of wealth that the Constantinople made through trading. Commodities from Asia such as spices and silk could be sold at a really high margin to the consumers in European Empires.
<span>Your answer would be
The powers not delegated to the United States by the Constitution, nor prohibited by it to the States, are reserved to the States respectively, or to the people.</span>
Hope This Helps!
=D
Austrian Empire controlled the city of Venice before the Unification of Italy.