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': "All are true about Barton's fracture except \nSelect and explain. \nA. Intra - articular fracture, B. Radio carpal subluxation, C. Dorsal barton is most common type, D. Requires open reduction and internal fixation", 'role': 'user'}, {'content': 'Answer: C \nExplanation: Volar barton is most common type.', 'role': 'assistant'}]