<prompt> The following parasitic infections predispose to malignancies -a Paragonimus westermaniib Guinea worm infectionc Clonorchiasisd Schistosomiasisabcdbdac  <response>: The following two parasites have definitive etiological association with malignancies: Clonorchis sinensis: cholangiocarcinoma Opisthorchis viverrini: cholangiocarcinoma Schistosoma haematobium : squamous cell cancer of urinary bladder Schistosoma japonicum: colorectal cancer 