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': 'Commonest complication after removal of mandibular 3rd molar \nSelect and explain. \nA. Lingual nerve damage, B. Dry socket, C. # mandible, D. Bleeding', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]