What are the answer choices ?
<span>d. Military expansion into Vietnam introduced terraced farming to China, which greatly increased the amount of land under cultivation in mountainous southern China
</span>Why was economic expansion during the Chinese Tang and Song dynasties linked to military expansion?
NOT:
a. Military expansion into Vietnam introduced the Chinese to faster-growing rice, which made it possible to rice crops a year in southern China
b. Military expansion into Manchuria and Korea made it possible for the Chinese to harness new energy sources in the water buffalo and the ox
<span>c. Military expansion into Korea and Japan introduced a new strain of drought-resistant wheat into northern China</span>
Most slaves lived on plantations, but the plantations were not very big: they rarely had more than 100 slaves. The best answer is then A. lived on plantations with 20 or more slaves.
It had better and larger population
