This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Oral cavity, Subject name: Surgery
[{'content': 'Which of the following is not a complication of oropharyngeal resection? \nSelect and explain. \nA. Xerostomia, B. Thoracic duct injury, C. Soft-tissue oedema, D. Rupture of carotid aery', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Xerostomia is dryness of the mouth associated with radiotherapy to the head and neck that involved the salivary glands.', 'role': 'assistant'}]