This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, 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: Ans. is 'b' i.e., Paragonimus westermani Crabs and crayfish are second intermediate hosts for Paragonimus westermani.", 'role': 'assistant'}]