The Study of Comparative Genomics Has Given Researchers the Ability

The study of comparative genomics has given researchers the ability to look at multiple genomes from different species, which has lead to new ideas about the evolutionary history of organisms. The conclusion is that

A) modern vertebrate species have very little similarity between their genomes.
B) modern vertebrate species all evolved from the different ancestors.
C) the genomes of modern vertebrate species and modern bacterial species are 98% similar.
D) the genomes of all modern verterbrates are very similar.
E) the genomes of modern bacteria contain 85% more genes than that of modern vertebrates.