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': 'Crab is the intermediate host for - \nSelect and explain. \nA. Clonorchis sinensis, B. Paragonimus westermani, C. Fasciola hepatia, D. Schistosoma hematobium', 'role': 'user'}, {'content': 'Answer: B \nExplanation: oriental lung fluke Definitive host- man ,cat ,dog ,fox, tiger, leopard,monkey First intermediate host- a fresh water snail Second intermediate host- crayfish or a crab ( refer pgno:131 baveja 3 rd edition)', 'role': 'assistant'}]