This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Preoperative assessment and monitoring in anaesthesia, Subject name: Anaesthesia
Emergency tracheostomy is not indicated in 
Select and explain. 
A. Foreign body larynx, B. Bilateral vocal cord paralysis, C. Stridor due to laryngeal growth, D. Acute severe asthma
D: Acute severe asthma
Answer: D: Acute severe asthma 
Explanation: Emergency tracheostomy is not indicated in asthma.