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: Pathology
[{'content': 'Kaposi sarcoma occurs with infection due to - \nSelect and explain. \nA. HHV8, B. HHV4, C. HHV2, D. HHV1', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]