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 non poisoning snake ? \nSelect and explain. \nA. Viper, B. Krait, C. Sea snake, D. Rat snake', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Viper, Kraft and sea snake are poisons snakes.\nRat snake is non-poisonous snake.', 'role': 'assistant'}]