The answer is the occipital lobe of the brain
C. Cnidarians and echinoderms is the answer.
There are 3 phyla that sorts worms platyhelminthes (flatworms), nematodes (round worms) and annelids (segmented worms). The closest one is C.
hope I Helped!
I found this article that I think could help you. (https://www.news-medical.net/life-sciences/DNA-Polymerase-Function.aspx) This is the link.
