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: Anaesthesia
[{'content': 'Which of the following drug can be given intravenously,epidurallyor by transdermal route \nSelect and explain. \nA. Thiopentone, B. Succinylcholine, C. Vecuronium, D. Fentanyl', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]