Answer:
A. requiring strict adherence to Sharia
Step-by-step explanation:
Cultural diffusion is defined as the spread of the beliefs and social activities of one culture in a given country to different coutry. This other country where the culture is spread could be of different ethnicities, religions, nationalities, from the intial culture.
In the case of cultural diffusion in Southwest Asia, the modern-day example is the requirement of strict adherence to Sharia.