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: ENT
A pathologist is observing a slide. He repos seeing perineural invasion. In which one of the following perineural invasion is most commonly seen? 
Select and explain. 
A. Adenocarcinoma, B. Adenoid cystic carcinoma, C. Basal Cell Adenoma, D. Squamous cell carcinoma
B: Adenoid cystic carcinoma
Answer: B: Adenoid cystic carcinoma 
Explanation: Adenoid cystic carcinoma