This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Disorders of the Respiratory Tract, Subject name: Pediatrics
18 month old child sign of severe pneumonia is - 
Select and explain. 
A. Chest indrawing, B. Stridor in calm child, C. Inability to drink, D. All of above
D: All of above
Answer: D: All of above 
Explanation: Ans. is 'd' i.e., All of above o Severe pneumonia or very severe diseaseChest indrowing 'or'Stridor in calm child 'or'Any general danger signH/O convulsionInability to drink or breast feedUncousciousness or letharginessChild vomiting everything.Pneumoniao Fast breathing-defined aso Upto 2 month = > 60 breath/minuteo 2 month-12 month = > 50 breath/minuteo 12 months to 5 year = > 40 breath/minute