What Kind of Threats Lay to the China Sea on China's

Multiple Choice

What kind of threats lay to the China Sea on China's eastern border?

A) Aggressive nomads who had to be fought off.
B) Threats to political stability.
C) Other farmers who attempted to encroach on their land and take it for themselves.
D) Powerful typhoons that often caused complete destruction and instability.
E) Pirates who occasionally ravaged the Chinese coast.