Answer:
modern humans originated in Africa and migrated to other parts of the world.
Step-by-step explanation:
The proposition "Out of Africa" is an evolutionary theory which explains that modern human has been originated from Africa about 100,000–200,000 years ago and then have migrated to different parts of the world following the late Pleistocene. The advancement of genetic analytics techniques in the 1980s exposed scientists to the hypothesis named out of Africa. The model emphasizes that while the world once inhabited by different human-like creatures, only one has evolved into modern man.