This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Virology (General Propeies, DNA Viruses), Subject name: Microbiology
[{'content': 'Which of the following does not possess both DNA and RNA: \nSelect and explain. \nA. Bacteria, B. Fungus, C. Virus, D. Spirochete.', 'role': 'user'}, {'content': 'Answer: C \nExplanation: VIRUS contain a single type of nucleic acid, i.e., either DNA or RNA, but not both. Bacteria and fungi contain both DNA and RNA. Spirochetes are bacteria.', 'role': 'assistant'}]