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
Green colored urine is seen after ingestion of: Kerala 09; AP 09; PGI 11; JIPMER 10, 11, 12; NEET 13 
Select and explain. 
A. Copper sulphate, B. Phenol, C. Organophosphorus, D. Cyanide
B: Phenol
Answer: B: Phenol 
Explanation: Ans. Phenol