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': 'Which metal poisoning can be detected analysing bone - \nSelect and explain. \nA. Arsenic, B. Nickel, C. Chromium, D. Lead', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Metals detected in bones, hair, nails →\xa0Arsenic,\xa0antimony, radium, and thallium.', 'role': 'assistant'}]