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': 'The most common tumor of the minor salivary gland is - \nSelect and explain. \nA. Mucoepidermoid carcinoma, B. Acinic cell carcinoma, C. Adenoid cystic carcinoma, D. Pleomorphic adeno carcinoma', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]