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': 'Warthins tumor is \nSelect and explain. \nA. An adenolymphoma of the parotid gland, B. A pleomorphic adenoma of parotid gland, C. Carcinoma of the parotid gland, D. None of the above', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]