<span>the best option is B
the development of more efficient agriculture
The emergence of efficient forms of agriculture especially in Mesopotamia, led to emergence of early city states as food was produced in surplus to feed the town population. it also led to division of labor. this form of agriculture also contributed to sedentary lifestyle and improved nutrition thus explosive population that contributed to city establishments.
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Nobody one because none gained land nor did anyone loose land it was all resided at the 38th paralell
D. The Wright bros i hope this helps! and please mark as brainliest
Ruler !!! I think
Sorry if it's wrong
