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': 'The intermediate host for T. Saginata is: \nSelect and explain. \nA. Man, B. Cow, C. Dog, D. Pig', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Cow', 'role': 'assistant'}]