Which set of examples belongs to the same phylum?

Step-by-step solution

Ancylostoma is a genus of roundworms, which includes some species of hookworms. They are known to be parasitic in nature. Enterobius is commonly known as the human pinworm due to the long pointed tail of the females. It is a parasitic worm and commonly found in the human gut. Both of these roundworms belong to the phylum Nematoda or Nemathelminthes or Aschelminthes. Corallium belongs to the phylum Cnidaria, Leucopenia belongs to phylum Porifera. Sepia and Laccifera belong to Mollusca and Arthropoda phylum, respecti