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': 'HHV-6B causes - \nSelect and explain. \nA. Carcinoma cervix, B. Carcinoma endometrium, C. Clear cell carcinoma, D. Focal encephalitis', 'role': 'user'}, {'content': "Answer: D \nExplanation: HHV 6B is the cause of mild but common childhood illness exanthem subitum. In older age groups ,it has been associated with infectious mononucleosis syndrome,focal encephalitis and in the immunodeficient,with pneumonia and disseminated disease. REF:ANATHANARAYAN AND PANIKER'S TEXTBOOK OF MICROBIOLOGY 8TH EDITION PAGE NO:477", 'role': 'assistant'}]