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': 'The primary causative factor for myofacial pain dysfunction syndrome of the TMJ is \nSelect and explain. \nA. Infratemporal space infection, B. Auriculotemporal neuritis, C. Muscular overextension and over contraction, D. Otitis media', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]