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
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: 
Select and explain. 
A. Superficial parotidectomy, B. Lumpectomy, C. Conservative total parotidectomy, D. Enucleation
C: Conservative total parotidectomy
Answer: C: Conservative total parotidectomy 
Explanation: 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.