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 one of the following drugs does not undergo the hepatic first-pass effect: \nSelect and explain. \nA. Propanolol, B. Lidocaine, C. Insulin, D. Morphine', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]