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': 'Metastatic disease to the oral region is most likely to occur in which of these locations? \nSelect and explain. \nA. Tongue, B. Posterior maxilla, C. Posterior mandible, D. Floor of the mouth', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]