Adam Was Certain That He Had Native American Ancestors,based on Tales

Multiple Choice

Adam was certain that he had Native American ancestors,based on tales that his grandfather told of the family history.He is disappointed when he takes a genetic ancestry test by sending a saliva sample to a testing company,because it does not confirm what he believed to be true.Adam may actually indeed have Native American ancestors because

A) DNA ancestry tests must be performed on blood to be accurate.
B) DNA ancestry tests only work on females,because only they have mtDNA.
C) the DNA sequences identified in ancestry tests do not reflect input from all lineages.
D) the testing labs do not test for Native American Y chromosome sequences.