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': 'Cause of death for drawing in cold water - \nSelect and explain. \nA. Vagal inhibition, B. Asphyxia, C. Loss of consciousness, D. None', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Immersion syndrome/vagal/submersion inhibition/ hydrocution- causes death from cardiac arrest due to vagal inhibition; this is due to:\nSudden impact with very cold water on body, eardrum, nasal passage, larynx, epigastrium.\nHorizontal entry in water with impact on epigastrium.\n\n\n\nDuck diving or diving in water with feet first.', 'role': 'assistant'}]