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': 'Aificial bruises are produced by: NEET 14 \nSelect and explain. \nA. Capsicum, B. Marking nut, C. Croton, D. Rati', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. Marking nut', 'role': 'assistant'}]