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': 'A 45 years old man comes to a dentist with pain in the lower jaw. The dentist diagnoses it as infected last molar and decides to extract it under local anesthesia. After the anesthesia, he extracted the tooth. After this, the patient also notices numbness in the later part of lower lip, chin and the tongue. This is due to infiltration of the \nSelect and explain. \nA. Posterior superior alveolar nerve, B. Lingual nerve, C. Nerve to mylohyoid, D. Buccal nerve', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]