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': 'Rhytidectomy is \nSelect and explain. \nA. Removal of skin wrinkles, B. A1 - of nasal septum position, C. Salivary gland excision, D. Cehek augmentation', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]