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
Name the muscle group which opposes the buccinator mechanism: 
Select and explain. 
A. Medical pterygoid, B. Lateral pterygoid, C. Masseter, D. Tongue muscles
D: Tongue muscles
Answer: D: Tongue muscles 
Explanation: None