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: Anatomy
A patient has mandibular nerve neuralgia with herpes zoster infection within mandibular division of left trigeminal nerve. Patient has difficulty on protrusion and on protrusion mandible deviates to left side. Which muscle is most probably affected: 
Select and explain. 
A. LP on left side, B. LP on right side, C. MP on left and LP on left, D. MP on right and LP on left
A: LP on left side
Answer: A: LP on left side 
Explanation: None