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
Adeno lymphoma refers to 
Select and explain. 
A. Adeno carcinoma, B. Adeno cystic lymphoma, C. Warthin's tumour, D. Pleomorphic adenoma
C: Warthin's tumour
Answer: C: Warthin's tumour 
Explanation: None