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': "Adeno lymphoma refers to \nSelect and explain. \nA. Adeno carcinoma, B. Adeno cystic lymphoma, C. Warthin's tumour, D. Pleomorphic adenoma", 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]