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: ENT
[{'content': 'A 40-year-old female, presented with a progressively increasing lump in the parotid region. On oral examinations, the tonsil was pushed medially. Biopsy showed it to be pleomorphic adenoma.The appropriate treatment is: \nSelect and explain. \nA. Superficial parotidectomy, B. Lumpectomy, C. Conservative total parotidectomy, D. Enucleation', 'role': 'user'}, {'content': 'Answer: C \nExplanation: For parotid tumors that arise in lateral lobe superficial parotidectomy with preservation of CN VII is indicated. If the tumor extends in to deep lobe of parotid, a total parotidectomy with nerve preservation is performed.', 'role': 'assistant'}]