This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: S.T.D., Subject name: Skin
[{'content': 'Verrucosa vulgaris is caused by - \nSelect and explain. \nA. HPV, B. EBV, C. CMV, D. HIV', 'role': 'user'}, {'content': 'Answer: A \nExplanation: See page 184 in 4th edition of SARP AA " verruca vulgaris most common type caused by HPV 2,4,27"', 'role': 'assistant'}]