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: Surgery
Most common tumour of minor salivary glands is ? 
Select and explain. 
A. Muco epidermoid carcinoma, B. Mixed tumour, C. Squamous cell carcinoma, D. Epithelioma
A: Muco epidermoid carcinoma
Answer: A: Muco epidermoid carcinoma 
Explanation: Ans. is 'a' i.e., Mucoepidermoid