How is culture spread? A
only through cultural diffusion

B
only through books and movies

C
through the arts, migration and from one generation to the next

D
only by older generations passing on traditions to younger generations

swahili is an extremely rich and complex civilization, a set of ethnic groups articulated by a language and a series of cultural elements that fuse the african traditions, islam and indian culture. this growth was largely a result of the indian ocean trading network that brought in not just man-made riches, but also religious ideas, specifically islam, which had a significant impact on the local culture. furthermore, the development of the swahili language gave a common cultural unity to the people.

they protect against unsafe foods and medicines being sold

explanation: