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: Dental
Buccal shelf lies between mandibular buccal frenum and the anterior edge of the 
Select and explain. 
A. Buccinator muscle, B. Medial pterygoid muscle, C. Mylohyoid muscle, D. Masseter muscle
D: Masseter muscle
Answer: D: Masseter muscle 
Explanation: None