The Mitochondrial DNA of a Young Girl's Teeth, Found in the Yucatán

The mitochondrial DNA of a young girl's teeth, found in the Yucatán peninsula and dating to 13,000-12,000 years ago, is:

A) Completely unique in the genetic record and cannot be connected, at this point, to any other ethnic group
B) Closely related to that of the groups of Siberian Homo sapiens who migrated to Beringia during the Ice Age
C) Impossible to reconstruct, given the limitations of modern genetic science
D) Compelling evidence of a mixed Neanderthal and Homo sapiens heritage