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': 'Green colored urine is seen after ingestion of: Kerala 09; AP 09; PGI 11; JIPMER 10, 11, 12; NEET 13 \nSelect and explain. \nA. Copper sulphate, B. Phenol, C. Organophosphorus, D. Cyanide', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. Phenol', 'role': 'assistant'}]