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': 'All are true regarding laryngomalacia except: \nSelect and explain. \nA. Poor prognosis, B. Most common congenital anomaly, C. Stridor, D. Gets relieved in prone position', 'role': 'user'}, {'content': 'Answer: A \nExplanation: (a) Poor prognosis(Ref. Current Diagnosis & Treatment Otolaryngology, Lalwani, 3rd ed., 481; Scott Brown, 8th ed., Vol 2; 333)The prognosis of laryngomalacia is very good; stridor disappears on its own by two years of age. Rest all are true', 'role': 'assistant'}]