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: Pharmacology
[{'content': 'Size of paicle for aerosol therapy/respirable dust is? \nSelect and explain. \nA. 0.5-1, B. 5-Jan, C. 10-May, D. 15-Oct', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., 1-5 o The two type of devices used for aerosol therapy are matered-dose inhalers and nebulizer. Both devices provide a range of paicle sizes that includes the desired 1-5 range.", 'role': 'assistant'}]