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
[{'content': 'All of the following muscles take their origin from the outer surface of the mandible EXCEPT: \nSelect and explain. \nA. Buccinator, B. Depressor anguli oris, C. Mentalis, D. Platysma', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]