This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Pharmacology
[{'content': 'A 3 Month old Child presents with Biphasic stridor and Barking cough. All are true eXcept \nSelect and explain. \nA. Hypopharyngeal dila on and subglottic stenosis on X-Ray, B. Involve subglottis most commonly, C. Male are involved more commonly than female, D. Antibiotics are used as an initial treatment', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Acute bronchioli s is predominantly a viral disease. Respiratory syncytial virus (RSV) is responsible for >50% of cases. Treatment For infants <3 yr of age, it is acceptable to continue to administer inhaled medications through an MDI with mask and spacer if a therapeutic benefit is demonstrated. ref: KD Tripathi 8th ed.', 'role': 'assistant'}]