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
Common cause of congenital stridor in child? 
Select and explain. 
A. Laryngomalacia, B. Laryngeal web, C. Hemangioma, D. Subglottic stenosis
A: Laryngomalacia
Answer: A: Laryngomalacia 
Explanation: Ans. is 'a' i.e., Laryngomalacia