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: Social & Preventive Medicine
Which is the most common complication of chicken pox in neonates? 
Select and explain. 
A. Pneumonia, B. Encephalitis, C. Reye's syndrome, D. Hemorrhages
A: Pneumonia
Answer: A: Pneumonia 
Explanation: The most common complication of chicken pox in neonates, adults and the immunocompromised is pneumonia. But in children varicella pneumonia is an uncommon complication. Ref: Park 21st edition, Page 135