This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: parasitology, Subject name: Microbiology
[{'content': 'Which of the following parasite passes through three hosts - \nSelect and explain. \nA. Fasciola hepatica, B. Fasciola buski, C. Schistosoma haematobium, D. Clonorchis sinensis', 'role': 'user'}, {'content': 'Answer: D \nExplanation: first intermediate host- operculate snails Second intermediate host- fresh water fish Definitive host- man,pig,cat,dog and rat (refer pgno:124 baveja 3 rd edition)', 'role': 'assistant'}]