According to John Relethford,what Is the Explanation for Africa's High

Multiple Choice

According to John Relethford,what is the explanation for Africa's high genetic diversity compared to Europe and Asia?

A) These populations had different levels of adaptation to disease.
B) Africa had the smallest population;genetic diversity is inverse to population size.
C) At the origin of modern humans,more people migrated into Africa than out of Africa.
D) Genetic drift increases genetic diversity in larger populations over time.