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: Surgery
[{'content': 'Number of plates required in case of fracture of External oblique ridge area: \nSelect and explain. \nA. 1, B. 2, C. 3, D. None', 'role': 'user'}, {'content': 'Answer: A \nExplanation: External oblique ridge area fracture means fracture of angle.', 'role': 'assistant'}]