How Could the "Demographic History of Neanderthal Populations" Be Explored

Multiple Choice

How could the "demographic history of Neanderthal populations" be explored if mitochondrial DNA from other Neanderthal samples could be PCR amplified?

A) These Neanderthal sequences could be compared to those of modern humans to learn if they are closely related.
B) These Neanderthal sequences could be compared to those of modern humans;the more they differ,the more distant the time of divergence between the Neanderthal and modern human lineages.
C) These Neanderthal sequences could be compared to each other to see how much they differ;the more they differ,the greater the divergence between these populations.
D) In the attempt to amplify other Neanderthal DNAs,those that amplify must be from more modern populations and those that don't are from more ancient populations.