Imagine That One of Your Friends Has Just Learned About

Imagine that one of your friends has just learned about the multiregional hypothesis, and she is astonished that humans evolved independently on different continents. What evidence would you provide your friend that contradicts the multiregional hypothesis?

A) The multiregional hypothesis has been corroborated several times over the last five decades. Most striking is research evaluating Y chromosome sequences, which contradicts the work of Rebecca Cann.
B) Cann's work contradicted the multiregional hypothesis by demonstrating that the last common ancestor of (modern) humans lived 3 million years ago.
C) Cann's research using mitochondrial DNA demonstrated that humans originated in Africa, and subsequently migrated to other continents.
D) Y chromosome data contradicted the multiregional hypothesis by demonstrating that the last common ancestor of modern humans originated in central Asia.