What does cultural diffusion refer to?

Cultural diffusion refers specifically to the spread of cultural beliefs and social activities from one group to another. This process involves the exchange of ideas, customs, practices, and social behaviors between different cultures, which can occur through various means such as trade, migration, conquest, or communication. Cultural diffusion enriches societies by introducing new concepts, traditions, and artistic expressions, fostering greater understanding and interaction among diverse populations.

The other choices focus on more specific aspects of cultural interactions or limitations. The sharing of technological innovations highlights a particular type of exchange that may occur as part of cultural diffusion, but it does not encompass the broader elements of culture such as beliefs and social activities. Merging different political ideologies involves a specific political context rather than being a general cultural exchange. Finally, the restriction of cultural practices within a single society contradicts the very essence of cultural diffusion, which is about spread and interaction rather than limitation.