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: Pediatrics
[{'content': 'Most common cause of stridor in infant and young children – \nSelect and explain. \nA. Abductor palsy, B. Croup, C. Laryngomalacia, D. Epiglottitis', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Laryngomalacia is the most common congenital laryngeal anomaly.\nIt is the most common cause of stridor in infants and children.', 'role': 'assistant'}]