Which of the Following Patterns Suggests That Cytomegalovirus Has Tracked

Which of the following patterns suggests that cytomegalovirus has tracked the evolution of its primate hosts for millions of years?

A) The cytomegalovirus phylogeny mirrors the phylogeny of primates.
B) The cytomegalovirus phylogeny mirrors the phylogeny of other viruses.
C) The cytomegalovirus phylogeny has fewer branches than the phylogeny of primates.
D) The cytomegalovirus phylogeny is very different from the phylogeny of nonhuman primates.