What Does It Mean When It Is Said That the Tree

Multiple Choice

What does it mean when it is said that the tree of human evolution is shallow?

A) that only humans that have the same ethnicity will share a recent common ancestor
B) that humans haven't evolved much
C) that all humans, no matter how distantly related they are, share a recent common ancestor
D) that only humans on the same continent will share a recent common ancestor
E) None of the answer options is correct.