This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Drowning, Subject name: Forensic Medicine
[{'content': 'Hydrocution is ? \nSelect and explain. \nA. Electric shock in water, B. Cold water submersion, C. Submersion in boiling water, D. None', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Hydrocution : (immersion syndrome ) Type of atypical drowning Mechanism -sudden dyspnoea and vagal inhibition -->hea stops immediately.( ventricular fibrillation has also been repoed.)', 'role': 'assistant'}]