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': 'The brown colour of the contusion is true is due to – \nSelect and explain. \nA. Hemosiderin, B. Reduced hemoglobin, C. Hematoidin, D. Bilirubin', 'role': 'user'}, {'content': 'Answer: A \nExplanation: The synopsis for forensic medicine & toxicology\xa0Dr .ks.narayan reddy, 28th edition,\xa0Pg no. 108\xa0\n\nColour of the bruise indicates the age of a bruise, the colour change is due to the breaking down of hemoglobin into hemosiderin, haematoidin and bilirubin by the action of enzymes.\xa0\nAt first: red Few hours to 3 days: blue 4th day: bluish black to brown (hemosiderin ) 5-6th day: greenish (haematoidin ) 7-12th day: yellow (bilirubin ) 2 weeks: normal', 'role': 'assistant'}]