The period in history between A.D. 395 and A.D. 1500 is known as the Middle Ages.
I think that the answer is probably B.
B.Roger Williams is the answer
In most empires, trade is important as it is a vital interaction for every country in the world. Without trade, countries would have to provide their own resources for every aspect in their daily life. Take for instance items such as food, clothing and technology.
