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: Orthopaedics
[{'content': 'High water content is seen in which zone of articular cartilage \nSelect and explain. \nA. Zone 1, B. Zone 2, C. Zone 3, D. Zone 4', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]