- Assimilation (A): Minority group adoption of dominant culture customs and norms, resulting in cultural change.
- Enculturation (B): Individual learning and adoption of one's own culture's values and behaviors, leading to internal cultural change.
- Diffusion (C): Spread of cultural elements (ideas, practices, products) between societies, causing change through borrowing.
- Revolution (D): Primarily societal/political change, not a direct process of cultural change, which is driven by assimilation, diffusion, and enculturation.
Step 1: Understanding the processes of cultural change.
Cultural change is driven by mechanisms such as the dissemination of ideas (diffusion), the amalgamation of distinct cultures (assimilation), and the acquisition of cultural standards (enculturation).
Final Answer:
\[\boxed{\text{The correct answer is (4) (A), (B) and (C) only.}}\]