A Recent Report Has Indicated Several Conclusions About Comparisons of Our

A recent report has indicated several conclusions about comparisons of our genome with that of Neanderthals. This report concludes, in part, that, at some period in evolutionary history, there was an admixture of the two genomes. This is evidenced by

A) some Neanderthal sequences not found in humans.
B) a small number of modern H. sapiens with Neanderthal sequences.
C) Neanderthal Y chromosomes preserved in the modern population of males.
D) mitochondrial sequences common to both groups.