Identify the scenario that demonstrates the process of cultural diffusion.
Aa farmer growing crops on a cultivated plot of land
Bthe spread of illness from animal-borne diseases
Cthe development of a writing system
Da merchant traveling to sell his goods in another society
Aa farmer growing crops on a cultivated plot of land
Bthe spread of illness from animal-borne diseases
Cthe development of a writing system
Da merchant traveling to sell his goods in another society