Each year Paris, Milan, and New York City hold fashion weeks showcasing the latest in clothing design. These events provide major clothing designers with the opportunity to finance new brands and to collaborate. Fashion weeks receive a large amount of news coverage in online, print, and televised media, which influences consumers' preferences and purchasing decisions.

Which of the following geographical processes best explains this impact on consumers?

Central business districts are increasingly commercialized.

Push and pull factors affect the flows of urban migrants.

World cities have market effects on a globalized urban culture.

Urban populations are correlated as described in the rank-size rule.

Uneven development results from the dominance of primate cities.