Cultures are subject to what selective process as well?

• A. Natural selection
• B. Genetic drift
• C. Mutation
• D. Gene flow

Answer: (A)

Cultures evolve through differential propagation of ideas and practices based on how useful or appealing they are in a given environment. That uneven spread is natural selection: cultural variants that help people thrive—whether by improving survival, efficiency, or social success—tend to become more common, while less advantageous ones fade.

Other processes exist: random fluctuations can alter frequencies (drift), new ideas can appear (mutation), and ideas can move between groups (gene flow or diffusion). But the selective force that shapes which cultural traits endure is natural selection.