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': 'Phenytoin pharmacokinetics is highlighted by which of the following characteristics ? \nSelect and explain. \nA. High first pass metabolism, B. Nonsaturation kinetics of metabolism, C. Capacity limited metabolism saturating at higher therapeutic concentration range, D. Extrahepatic metabolism', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]