Cann's studies involving mitochondrial DNA showed that the two deepest branches of the human family tree are African. Which of the following observations explains this statement?
A) that all humans evolved in Africa and only later migrated to other places
B) that our closest ancestors moved out of Africa and then evolved into humans
C) that our closest ancestors migrated to two other continents
D) that all the humans that evolved in Africa only migrated to two continents
E) None of the answer options is correct.
Correct Answer:
Verified
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