The correct option is D Clonorchis sinensis
Platyhelminthes is the phylum which contains flatworms. These are divided into four major classes Cestoda, Trematoda, Monogenea, and Turbellaria. Clonorchis sinensis or the Chinese liver fluke is a human liver fluke in the class Trematoda, phylum Platyhelminthes. This parasite lives in the liver of humans and is found mainly in the common bile duct, gall bladder, feeding on bile. These animals are believed to be the third most prevalent worm parasite in the world, endemic to Japan, China, Taiwan and Southeast Asia, and hence the name
So, the correct answer is option D.