Native americans and africans
you said "which statement" but you provided no statements to chose from so how can I answer this? Please add additional information to the text if you want this answered
The appropriate response is the Silk Road. It was an antiquated system of exchange courses that were for quite a long time key to social communication initially through areas of Eurasia interfacing the East and West and extending from the Korean landmass.
Despite the fact that silk was surely the significant exchange thing sent out from China, numerous different products were exchanged, and also religions, syncretic methods of insight, and different innovations.
The transcontinental railroad helped to increase the speed at which coast to coast communication was possible. The railroad allowed for materials, people, goods, and messages to be transported more quickly from coast to coast increasing the pace of communication.
