In addition to fighting during the Crusades, trade was an important component as new goods and ideas were exchanged. They came into contact with empires that were in many ways more advanced than their own. ... The increased demand for these items sent merchants to the east permanently to establish trade networks.
Answer:
b. decrease SUV production by 3 million.
Well Industrialization began and both were receiving mass amounts of immigrants.
Can you explain a bit more in detail?
