Answer: Diffusion
Explanation:
In accordance with cultural anthropology, diffusion is defined as spreading of cultural aspects, traits and components towards other culture. Sharing of ideas , religions, customs, practices, style, technology, language etc takes place.
According to the question, Boasians used cultural diffusion for sharing of borrowing the cultural characteristic of one culture to another culture. In this way, they spread different inventions with help of other culture.
