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': 'Which of the following is not a cause of death due to suffocation - \nSelect and explain. \nA. Choking, B. Gagging, C. Smothering, D. Throttling', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Various types of suffocation are smothering, gagging, chocking, burking, traumatic asphyxia, cafe coronary and overlying.\nThrottling is strangulation (manual strangulation).', 'role': 'assistant'}]