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': 'Complication of fracture scaphoid is \nSelect and explain. \nA. Avascular necrosis of distal pa, B. Injury to radial aery, C. Injury to radial nerve, D. Avascular necrosis of proximal pa', 'role': 'user'}, {'content': 'Answer: D \nExplanation: D i.e. Avoscular', 'role': 'assistant'}]