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
Most malignant tumor of salivary glands - 
Select and explain. 
A. Pleomorphic adenoma, B. Wahin tumor, C. Adenoid cystic carcinoma, D. Acinic cell tumor
C: Adenoid cystic carcinoma
Answer: C: Adenoid cystic carcinoma 
Explanation: Ans. is 'c' i.e., Adenoid cystic carcinoma