This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Muscle relaxants, Subject name: Anaesthesia
[{'content': 'site of action of vecuronium is \nSelect and explain. \nA. Cerebrum, B. Reticular formation, C. Motor neuron, D. Myoneural junction', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Vecuronium is the non-depolarising neuromuscular blocker, acts on nicotinic receptors(Nm) at myoneural junction.', 'role': 'assistant'}]