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': 'Water host required for schistosomiasis - \nSelect and explain. \nA. Fish, B. Cyclops, C. Snails, D. Crabs', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Definite host - man Intermediate host-snail Causative agents of the disease schistosomiasis (refer pgno: 116 baveja 3 rd edition)', 'role': 'assistant'}]