<span>B. An abundance of natural resources including salt and gold</span>
Because there was either less supplies or more supplies where there was trade.
C) a unified European currency did not come about until the creation of the Euro -- instituted as an "invisible" currency in 1999 for trading but not available for common use (i.e., as a physical currency) until 2002.
Answer: Hey dude why you keep putting up dumb things then post it
Explanation:
In 907 the Tang dynasty was ended when Zhu Wen, now a military governor, deposed the last emperor of Tang, Emperor Ai of Tang, and took the throne for himself (known posthumously as Emperor Taizu of Later Liang). He established the Later Liang, which inaugurated the Five Dynasties and Ten Kingdoms period.
