This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Intravenous Anesthetic Agents, Subject name: Anaesthesia
[{'content': 'All of the following can be routes of opioid administration except: \nSelect and explain. \nA. Intravenous, B. Intramuscular, C. Oral, D. Intradermal', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Opioid can be given intravenous, intramuscular, transdermal, oral , intrathecal , epidural . Opioid patch can be applied which is transdermal route.', 'role': 'assistant'}]