This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Other topics and Adverse effects, Subject name: Pharmacology
[{'content': 'In comparison to inhaled adrenergic agonists, the inhaled anticholinergics: \nSelect and explain. \nA. Are more effective in bronchial astham, B. Are better suited for control of an acute attack of asthma, C. Produce slower response in bronchial asthma, D. Produce little benefit in chronic obstructive lung disease', 'role': 'user'}, {'content': 'Answer: C \nExplanation: (Ref: KDT 6/e p222) Anticholinergic drugs like ipratropium and tiotropium produce slower response in bronchial asthma. Anticholinergic drugs are more effective in COPD than bronchila asthma.', 'role': 'assistant'}]