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': 'Small pox belongs to which class of poxviruses - \nSelect and explain. \nA. Parapoxvirus, B. Capripoxvirus, C. Leporipox virus, D. Ohopovirus', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Variola virus causes smallpox. It belongs to ohopoxvirus REF:ANANTHA ANARAYANAN MICROBIOLOGYNINTH EDITION PAGE.461&465(RECAP)', 'role': 'assistant'}]