Mountains regions were the most ideal places for the development of early civilizationdue mostly to the availability of rich soil for farming?

(202 bc - 220 ad) dynasty started by lui bang; a great and long-lasting rule, it discarded the harsh policies of the qin dynasty and adopted confucian principles; han rulers chose officials who passed the civil service exams rather than birth; it was a time of prosperity

no because we were not ready for war