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
Tracheostomy is not indicated in 
Select and explain. 
A. Emphysema, B. Bronchiectasis, C. Atelectasis, D. Pneumothorax
D: Pneumothorax
Answer: D: Pneumothorax 
Explanation: Friends, it is quite obvious that pneumothorax can be a complication of tracheostomy (if not performed properly) rather than an indication.