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: Forensic Medicine
[{'content': 'Penetrating neck trauma is \nSelect and explain. \nA. 2 cm deep, B. Damaging vital structure, C. Injury by sharp object, D. Violating platysma', 'role': 'user'}, {'content': 'Answer: D \nExplanation: D i.e. Violating platysma', 'role': 'assistant'}]