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
[{'content': 'False about tracheostomy is: \nSelect and explain. \nA. Decrease dead space, B. Increase dead space, C. Increased lining secretions, D. Work of breathing reduced', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Tracheostomy reduces dead space by around 150 ml. This helps to reduce work of breathing and is helpful in patients with chronic lung diseases and reduced respiratory efforts.', 'role': 'assistant'}]