Based on the "Out-Of-Africa" Hypothesis, Which of the Following Is

Multiple Choice

Based on the "out-of-Africa" hypothesis, which of the following is the most likely reason why species like Neandertals and Homo floresiensis do not exist today?

A) Modern humans out-competed and replaced other populations as they migrated around the world.
B) Extensive gene flow between human populations led to a blending of traits that resulted in the evolution of modern humans.
C) As modern humans developed new and more accurate hunting skills they were able to hunt other "undesirable" populations to extinction.
D) Climate change in Africa caused the extinction of all human populations except for the ones that gave rise to modern humans.