This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Larynx, Subject name: ENT
Respiratory distress is seen in 
Select and explain. 
A. Bilateral abductor palsy, B. Unilateral abductor palsy, C. Unilateral recurrent laryngeal nerve paralysis, D. None
A: Bilateral abductor palsy
Answer: A: Bilateral abductor palsy 
Explanation: As both the cords lie in median or paramedian position, the airway is inadequate causing dyspnoea and stridor but the voice is good. Dyspnoea and stridor become worse on exeion or during an attack of acute laryngitis Ref: PL Dhingra Textbook of Ear, Nose and Throat, Edition 7, page - 339