Question

Why did trade routes develop slowly in eastern Asia?
the Warring States period was a time when the Chinese government was weak and unorganized which made it more difficult to develop trade routes.
people in eastern Asia did not want to trade with other civilizations
People in eastern Asia did not know there were other civilizations out there

Answer 1

The best option from the list would be that "people in eastern Asia did not want to trade with other civilizations," since they had practically all the resources they needed 

Answer 2

Trade routes developed slowly in eastern Asia because people in eastern Asia did not want to trade with other civilizations.