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: AIIMS 09 \nSelect and explain. \nA. Well-defined margin, B. Capillary rupture with extravasation of blood, C. Yellow color, D. Gaping', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. Capillary rupture with extravasation of blood', 'role': 'assistant'}]