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': 'Knockout drops are: NEET 13 \nSelect and explain. \nA. Paraldehyde, B. Chloral hydrate, C. Kerosene, D. Turpentine', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. Chloral hydrate', 'role': 'assistant'}]