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': "A drug 'X' belongs to the anticholinergic drug group. It is primarily used in pre anesthetic medication and also during surgery. Which of the following can be 'X' ? \nSelect and explain. \nA. Glycopyrrolate, B. Pipenzolate methyl bromide, C. Isopropamide, D. Dicyclomine", 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]