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.
D) second industrial revolution
Answer:
D. high-quality goods and services is the correct answer.
Explanation:
He was a brutal leader who advanced the military but made few other positive changes in the Mongol empire.