When a whole way of life is in the process of change under the influence of another culture, what is it called?

When a culture undergoes comprehensive transformation under the influence of another culture, the process is called assimilation. Assimilation involves the complete adoption of another culture's values, norms, and practices, often resulting in the loss of original cultural identity. Acculturation (B) is a more limited process of cultural exchange and adaptation. Diffusion (A) refers to the spread of cultural traits from one society to another. Socialization (D) is the lifelong process of learning cultural norms.