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': 'A poison which is illuminous, translucent and waxy? \nSelect and explain. \nA. Iodine, B. Ammonium bromide, C. Cobra venom, D. Yellow phosphorus', 'role': 'user'}, {'content': 'Answer: D \nExplanation: D i.e. Yellow phosphorus - Yellow (or white) phosphorus exists in translucent, waxy, luminous cylinders of garlicky smell & tasteQ. - Iodine occurs as brown (bluish-black), soft and scaly crystals with a metallic lusture and unpleasant taste. It gives off violet coloured vapour having a characteristic odour at all temperatures. - Caustic alkalis occurs as white powders. Whereas venom (salive) of cobra is faint transparent yellow and slightly viscous which becomes slightly turbid when exposed to sun.', 'role': 'assistant'}]