What is cultural diffusion? a. the process by which a cultural trait is spread from one society to another b. the belief that in a society, no other cultural trait should be adopted c. the transfer of all cultural characteristics to another culture d. the adaptation of an entire civilization's culturewhat is cultural diffusion? a. the process by which a cultural trait is spread from one society to another b. the belief that in a society, no other cultural trait should be adopted c. the transfer of all cultural characteristics to another culture d. the adaptation of an entire civilization's culture