This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Tumors, Subject name: ENT
[{'content': 'Following is true about the incidence of tumors of salivary glands except - \nSelect and explain. \nA. Pleomorphic adenoma - 50%, B. Oncocytoma - 5%, C. Warthins tumor - 5 - 10%, D. Mucoepidercmoid carcinoma - 15%', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., Oncocytoma - 5% Histologic classification and incidence of the most common benign andmalignant tumors of the salivary glandsBenignMalignantPleomorphic adenoma (50%) (mixed tumor)Mucoepidermoid carcinoma (15%)Warthin tumor (5% - 10%)Adenocarcinoma (NOS) (10%)Oncocytoma (1%)Acinic cell carcinoma (5%)Other adenomas (5%-10%) Basal cell adenoma Canalicular adenomaMalignant mixed tumor (3%-5%) Squamous cell carcinoma (1%)Ductal papillomasOther carcinomas (2%)", 'role': 'assistant'}]