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
Most common carcinoma of minor salivary gland is? 
Select and explain. 
A. Pleomorphic adenoma, B. Mucoepidermoid carcinoma, C. Adenoid cystic carcinoma, D. Wahin's tumor
C: Adenoid cystic carcinoma
Answer: C: Adenoid cystic carcinoma 
Explanation: repeated question.