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
[{'content': 'WHO criteria for hospital admission in pneumonia ? \nSelect and explain. \nA. High fever, B. Nasal flaring, C. Difficulty in breathing, D. All of the above', 'role': 'user'}, {'content': 'Answer: D \nExplanation: CURB-65 uses the following criteria to assess the patient&;s severity of illness: confusion; uremia with blood urea nitrogen (BUN) level of 20 mg/dL or higher; respiration rate of 30 or more breaths per minute; systolic blood pressure lower than 90 mm Hg or diastolic blood pressure 60 mm Hg or lower; and age 65 or older . Reference: GHAI Essential pediatrics, 8th edition', 'role': 'assistant'}]