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': 'All of the following are having lipid envelope except? \nSelect and explain. \nA. HIV, B. Rabies virus, C. Varicella, D. Enterovirus', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. is 'd' i.e., Enterovirus", 'role': 'assistant'}]