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: Pathology
[{'content': "Which tumour does not occur in minor salivary gland? \nSelect and explain. \nA. Pleomorphic adenoma, B. Adenocarcinonna, C. Mucoepidermoid carcinoma, D. Warthin's tumour", 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]