This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Respiratory System, Subject name: Pediatrics
Pneumothorax could be a complication of: 
Select and explain. 
A. Staphylococcal pneumonia, B. Pneumococcal pneumonia, C. Klebsiella pneumonia, D. Viral pneumonia
A: Staphylococcal pneumonia
Answer: A: Staphylococcal pneumonia 
Explanation: a. Staphylococcal pneumonia(Ref: Nelson's 20/e p 2088-2093, Ghai 8/e p 379-381)Pneumothorax could be a complication of Staphylococcal pneumonia, due to rupture of pneumatoceles.