Which classification is based on national origin or culture?

The correct classification based on national origin or culture is ethnicity. Ethnicity refers to shared cultural traits such as language, religion, and traditions that connect a group of people with a common national or cultural heritage. This concept highlights the cultural identity and social experiences of a group, allowing for a deeper understanding of how individuals relate to one another within their cultural context.

While demographics encompass broad statistical data about populations, including age, sex, and income, it does not specifically target culture or national origin. Race is often used to categorize people based on physical characteristics but does not inherently include cultural identity. Nationality typically refers to the legal relationship between an individual and a state or nation, which can encompass a broader context that isn't strictly cultural. Thus, ethnicity most accurately reflects classification by national origin or cultural identity.