This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Congenital Lesions and Stridor, Subject name: ENT
[{'content': 'Congenital laryngeal stridor is also known as: \nSelect and explain. \nA. Laryngomalacia, B. Quinsy, C. Laryngotracheobronchitis, D. Laryngeal web', 'role': 'user'}, {'content': 'Answer: A \nExplanation: (a) Laryngomalacia(Ref. Current Diagnosis & Treatment Otolaryngology, Lalwani, 3rd ed., 481; Scott Brown, 8th ed., Vol 2; 333)Quinsy is Peritonsillar abscess.Laryngotracheobronchitis also known as croup is a viral infection most commonly caused by parainfluenza virus.Laryngeal web is a rare congenital malformation characterised by incomplete canalisation of larynx.', 'role': 'assistant'}]