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: Medicine
[{'content': 'Most common extra-cutaneous manifestation of chicken pox is - \nSelect and explain. \nA. CNS involvement, B. Varicella pneumonia, C. Congenital varicella, D. Reye syndrome', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Answer- A. CNS involvementThe most common extracutaneous site of involvement in chicken pox in children is the CNSThe cerebrospinal fluid (CSF) contains lymphoctyes and elevated levels of protein.', 'role': 'assistant'}]