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': "Salivary gland tumor exclusively seen in parotid gland \nSelect and explain. \nA. Wahin's tumor, B. Pleomorphic adenoma, C. Mucoepidermoid Ca, D. Adenoid cystic Ca", 'role': 'user'}, {'content': 'Answer: A \nExplanation: Answer-A. Wahin\'s tumor"Wahin\'s tumor arises only in the parotid gland" - Textbook of surgery"Wahin\'s tumor arises almost exclusively in the parotid gland (the only tumor viually restricted to the parotid)"Salivary gland tumor seen only it parotid gland- Wahins\'tumor.', 'role': 'assistant'}]