This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Virology, Subject name: Microbiology
[{'content': 'One of the following is not a cultivable virus - \nSelect and explain. \nA. Papova, B. Parvovirus B-19, C. Herpes, D. Adenovirus', 'role': 'user'}, {'content': "Answer: B \nExplanation: parvoviruses are very small viruses with a single strand3d genome.they need a helper virus or are totalky dependant on the host virus for replication. REF:ANANTHANARAYAN AND PANIKER'S TEXTBOOK OF MICROBIOLOGY 9TH EDITION PAGE NO:554", 'role': 'assistant'}]