Answer:
the answer is c because that is super easy.
Lots of trade was done through the silk road. this route went through east Asia and Western Europe
http://historyworld.net/wrldhis/PlainTextHistoriesResponsive.asp?ParagraphID=gpy#c1920
Well, here is a hint. Anything ending in (.com) is not usually trustworthy, because they are usually trying to sell something, or are just not accurate. (.gov) is trust worthy I guess, but they are telling you what you want to hear. (WIKI IS NOT TRUSTWORTHY AT ALL) (.edu) would be the best, or (.org)
