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': 'Drug not having any role in Acute Asthma is: \nSelect and explain. \nA. Ipratropium, B. Steroid, C. Salbutamol, D. Sodium Chromoglycate', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Sodium Chromoglycate Sodium Chromoglycate', 'role': 'assistant'}]