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: Surgery
Tracheostomy will: 
Select and explain. 
A. Increase dead air space, B. Increase respiratory resistance, C. Decrease respiratory work, D. Cause obstruction in respiration
C: Decrease respiratory work
Answer: C: Decrease respiratory work 
Explanation: None