Answer:
C. nile river. hope this helps
Success in trade always deals with advertisement. In this case, the spread of Islam help distribute it's teachings and beliefs making more people contribute to trade.
the major periods of chinese immigration (from 1858 to 1923 and since 1947) reflected changes in the Canadian government's Immigration Policy. From 1885, Chinese migrants had to pay a $50 "entry" or "head" tax before being admitted into canada. the chinese were the only ethnic group to pay a tax to enter canada.
Probably Justinian, established Justinian Code and improved the foundations of the Byzantine Empire.