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

The farmer: he does not spread culture.

illness: it is a diffusion, but not of culture

The development of a writing system : it is cultural, but there is no diffusion involved

a merchant traveling to sell his goods in another society- yest, this is true! the goods are connected to culture, and the merchant traveling is contributing to the diffusion!