This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Head and neck, Subject name: Surgery
The most common tumor of the minor salivary gland is 
Select and explain. 
A. Mucoepidermoid carcinoma, B. Acinic cell carcinoma, C. Adenoid cystic carcinoma, D. Pleomorphic adeno carcinoma
C: Adenoid cystic carcinoma
Answer: C: Adenoid cystic carcinoma 
Explanation: The 90% of minor salivary gland tumours are malignant-commonly adenoid cystic carcinomas 10% are benign commonly pleomorphic adenomas SRB,5th,420.