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': 'Antemoem bruise is differentiated from postmoem bruise by : \nSelect and explain. \nA. Well defined margin, B. Capillary rupture with extravasation blood and ligature mark, C. Yellow colour, D. Gaping', 'role': 'user'}, {'content': 'Answer: B \nExplanation: B i.e. Capillary rupture with extra vasation blood & ligature mark', 'role': 'assistant'}]