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 extra skin manifestation of varicella is involvement of - \nSelect and explain. \nA. CNS, B. Lungs, C. Kidneys, D. CVS', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Other complication like acute cerebellar ataxia,meningitis ,encephalitis may cause REF:ANANTHANARYANAN TEXT BOOK OF MICROBIOLOGY 9EDITION PGNO.471', 'role': 'assistant'}]