By what time period does evidence of cultural sharing in neolithic china begin? what was one impact of this sharing on the individual societies?

In respect to the first question, it can be said that around 8000 BC to 7000 BC is the time period where evidence of cultural sharing in Neolithic China began. 

One big impact of the sharing on the individual societies was the positive impact on the ways of animal domestication and also agriculture.

This answer would be c