What did the early city-states create that the Zhou and Qin dynasties expanded upon?(1 point)%0D%0AResponses%0D%0A%0D%0Airrigation systems%0D%0Airrigation systems%0D%0A%0D%0Afeudal system%0D%0Afeudal system%0D%0A%0D%0Awarfare%0D%0Awarfare%0D%0A%0D%0Ahorseback riding

Answer 1

The early city-states created irrigation systems and the Zhou and Qin dynasties expanded upon them. Additionally, they also expanded upon the feudal system and horseback riding.