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: Surgery
Trismus during block anesthesia is as a result of 
Select and explain. 
A. Massive edema, B. Damage to medial pterygoid, C. Damage to lateral pterygoid, D. Damage to inferior alveolar nerve
B: Damage to medial pterygoid
Answer: B: Damage to medial pterygoid 
Explanation: None