Final answer:
The 'out of Africa' model is more aligned with current scientific understanding of human differentiation, suggesting modern humans originated in Africa and then spread worldwide, with some interbreeding with local species.
Step-by-step explanation:
The question revolves around the theories that explain human differentiation and which hypothesis aligns with the current scientific consensus. The first hypothesis is the "out of Africa" model, suggesting that modern humans originated from Africa and then spread across the globe. The second hypothesis is the "multiregional evolution model", suggesting that Homo sapiens evolved in several regions concurrently. Present-day understanding, bolstered by genetic evidence, leans more towards the "out of Africa" model with a likelihood of some interbreeding with local hominin species as modern humans expanded into new territories. This is supported because the genetic diversity found in Africa is also present in the rest of the world, suggesting a common origin.