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
On opening the mouth, if the jaw deviates to the right side, it indicates the paralysis of: 
Select and explain. 
A. Right lateral pterygoid, B. Left lateral pterygoid, C. Right medial pterygoid, D. Left medial pterygoid
A: Right lateral pterygoid
Answer: A: Right lateral pterygoid 
Explanation: None