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: ENT
All are true regarding Laryngomalacia except - 
Select and explain. 
A. Poor prognosis, B. Most common congenital abnormality, C. Stridor with cyanosis, D. Gets relieved in prone position
A: Poor prognosis
Answer: A: Poor prognosis 
Explanation: None