Final answer:
Hierarchical diffusion explains the spreading of popular culture through cultural elites.
Step-by-step explanation:
The diffusion of popular culture can be explained using the concept of hierarchical diffusion. Hierarchical diffusion is the spreading of popular culture through cultural elites. This means that popular culture often starts with influential individuals or groups who have power and influence over a larger population. These elites then promote and spread popular culture to the wider society. An example of hierarchical diffusion is when a famous celebrity introduces a new fashion trend or a popular musician releases a new style of music, which then becomes popular and spreads to the general population.