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': 'Which of the following group of drugs are a\nneuromuscular blocking agents \nSelect and explain. \nA. Choline, adrenaline and amphetamine, B. Glycinium, neostigmine and physostigmine, C. Pancuronium, rocuronium, D. Pirenzipine, propanolol and propantheline', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]