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
Commonest sign of intrabronchial foreign body in children is - 
Select and explain. 
A. Cough, B. Wheeze, C. Dyspnoea, D. Stridor
A: Cough
Answer: A: Cough 
Explanation: Ans. is 'a' i.e., Cough