Middle Ages.
The period of European history extending from about 500 to 1400–1500 ce is traditionally known as the Middle Ages. The term was first used by 15th-century scholars to designate the period between their own time and the fall of the Western Roman Empire.
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Answer:
A) One piece of historical evidence dealing with transportation and commercial technology that developed from 1200 to 1450 CE that would support the first relationship would be " Transport activity and economic growth appear in the aggregate to be correlated, and assertions that improved mobility causes growth in the economy are common. "
B ) One piece of historical evidence that would support the second relationship in this passage would be "transport infrastructure has been to make possible and to reduce the costs of long-distance trade and so make markets more integrated." What the author is trying to say is that transport infrastructure has reduced the cost of long distance trading which caused markets to integrate which makes it more high in demand , the more its being traded and the cost is cheap the more markets would want it.
C) One piece of historical evidence with state interactions in the economy is that " Transport activity and economic growth appear in the aggregate to be correlated, and assertions that improved mobility causes growth in the economy are common. This causality is important but difficult to prove." The expansion and intensification of long-distance trade routes often depended on environmental knowledge
Explanation
