Cultural divergence refers to the process where specific cultures become increasingly different from each other, often due to isolation, cultural differences, or changes in social norms and values.
In the options you've provided, "the continuation of traditional gender roles" could be seen as an example of cultural divergence, as it implies that certain cultures may continue to adhere to specific traditions and norms that distinguish them from others that may embrace more progressive or egalitarian views.
The other options, such as the common use of major languages and the popularity of national sports leagues, suggest more convergence in culture rather than divergence. The continuation of democratic ideals and free market economies also indicates convergence, as these concepts are widely adopted across various cultures.
Therefore, the best description of cultural divergence among your provided options is "the continuation of traditional gender roles."