Pls help me out! During the Neolithic Revolution which of the following technological innovations led to
improvements in agricultural production and trade:
(selections provided in photo)

Who ever answers first gets ! trade in the vedic age led to a.the rise of kingdoms because of the importance of controlling land and long-distance travel routes b.the building of an extensive system of roads because of the difficult terrain c.the creation of a large banking class because of the need to exchange different currencies d.the development of a centralized government that controlled the economic decisions of its people