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': 'Most common molluscum virus - \nSelect and explain. \nA. 1, B. 2, C. 3, D. 4', 'role': 'user'}, {'content': 'Answer: A \nExplanation: REF:Textbook of microbiology, Ananthanarayan and Paniker. Page no.: 445, 465', 'role': 'assistant'}]