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': 'Greenish colour in a contussion is due to - \nSelect and explain. \nA. Hemosiderin, B. Haemotoidin, C. Bilirubin, D. Biliverdin', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Green color is due to Haemotoidin.', 'role': 'assistant'}]