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
The recurrence of pleomorphic adenoma is attributed 
Select and explain. 
A. Presence  of an incomplete capsule, B. Mixed origin, C. Absence of capsule, D. Perineural spread
A: Presence  of an incomplete capsule
Answer: A: Presence  of an incomplete capsule 
Explanation: None