The early anthropological theory that held that all cultures develop through the same stages is called .

Unilinear evolution.

Explanation:

A nineteenth-century social theory, Unilinear evolution explained the evolution of societies and culture. The theory is based on the notion that believed that all elements of cultures and societies would go through the same series of predetermined stages of evolution. The evolutionary process was process move from a simple to complex form of culture.

answer is b.shrapnel