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': 'HIV envelope is formed by \nSelect and explain. \nA. Host cell, B. Virus, C. Both, D. None', 'role': 'user'}, {'content': 'Answer: C \nExplanation: HIV Envelope is made up of Lipoprotein.\nLipid is derived from host cell and protein is virus encoded.', 'role': 'assistant'}]