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': 'Pirenzepine is used for \nSelect and explain. \nA. Peptic ulcer, B. Motion sickness, C. Constipation, D. Bronchial asthma', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Pirenzepine & Telenzepine are M1 antagonists used for peptic ulcer disease.', 'role': 'assistant'}]