The correct option is A Pheretima
Specialised cells present in most of the annelids, whose function is similiar to the liver in vertebrates are called chloragogen cells These cells stores glycogen and neutralize toxins.
Pheretima (earthworm) is a member of annelids. Thus they have chloragogen cells.
These cells are absent in other phylum like the molluscs, nematoda and arthropods. Ascaris and Scorpion are members of phylum nematoda and arthropoda respectively.