text: <unk> , also known as the  common liver fluke or sheep liver fluke, is a parasitic flatworm of the class Trematoda, phylum Platyhelminthes that infects liver of a various mammals, including man. The disease caused by the fluke is called<unk> asis (also known as<unk> sis).<unk>  is world-wide distributed and causes great economic losses in sheep and cattle.
option_0: Fasciola hepatica
option_1: Schistosoma mansoni
option_2: Clonorchis sinensis
option_3: Echinococcus multilocularis
option_4: Trichinella spiralis
option_5: Trichuris trichiura
option_6: Onchocerca volvulus
option_7: Ascaris lumbricoides