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: Pathology
[{'content': 'Of the following which is most common disorder causing pain about the masticatory apparatus including the TMJ : \nSelect and explain. \nA. Traumatic arthritis, B. Trigeminal neuralgia, C. Myofacial pain dysfunction syndrome, D. Degenerative arthritis', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]