Which of the following is an example of a "subculture"?

A subculture is defined as a cultural group that exists within a larger culture, distinguished by its unique values, beliefs, norms, and practices. This concept captures how smaller groups can adopt different identities and lifestyles while still relating to the broader cultural context. For instance, members of a subculture might share specific interests or styles that set them apart from the mainstream, but they still interact with and are influenced by the larger society.

The other options represent broader or different concepts. The entire population of a country refers to the dominant culture, rather than a subset. A unique artistic movement could be part of a subculture, but it does not inherently encapsulate the social aspects that define a subculture. Finally, the social hierarchy of a society describes structural relationships and power dynamics, rather than a collective identity held by a distinct group. Thus, the answer illustrating a group with distinct values within a larger culture captures the essence of what a subculture is.