What is cultural diffusion?

Cultural diffusion refers specifically to the process by which ideas, customs, and technologies are shared and spread between different cultures or societies. This phenomenon often occurs through various means such as trade, migration, military conquest, or communication. As people from different backgrounds interact, they exchange not only goods but also beliefs, traditions, and innovations, leading to a blending or adaptation of different cultural elements.

This understanding highlights why the correct answer focuses on the spread of ideas, customs, and technologies. It captures the essence of how cultural traits can transcend geographic and social boundaries, enriching societies and facilitating a greater understanding among diverse groups.

The other options do not accurately address this specific concept. Migration refers only to the movement of people and does not inherently involve the exchange of cultural elements. Economic development, while potentially influenced by cultural diffusion, does not define it. Isolation of cultural practices stands in stark contrast to the idea of diffusion, as it suggests the separation and preservation of cultural traits without the influence of outside ideas or customs.