Complete a phylogenetic tree of Bilateria that includes the ten phyla of bilaterians. Label each branch that leads to a phylum with a C, H, HC, or N, depending on whether members of the phylum have a coelom only (C), hemocoel only (H), hemocoel and reduced coelom (HC), or no body cavity (N).
(C) echinodermata
(C) chordata
(N) platyhelminthes
(H) syndermata
(C) ectoprocta
(C) brachiopoda
(HC) mollusca
(C) annelida
(H) nematoda
(HC) arthropoda