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
All are true regarding laryngomalacia except: 
Select and explain. 
A. Poor prognosis, B. Most common congenital anomaly, C. Stridor, D. Gets relieved in prone position
A: Poor prognosis
Answer: A: Poor prognosis 
Explanation: (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