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': 'Umblicated nodules are produced by- \nSelect and explain. \nA. Poxvirus, B. Enterovirus, C. Rhinovinis, D. Myxovirus', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Nodules with central umblication is produced in molluscum contagiosum, caused by a Poxvirus.', 'role': 'assistant'}]