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': 'A middle aged man comes to OPD with paraesthesia of hands and feet, hyperkeratosis of palms, rain drop pigmentation and transverse lines on nails. Most likely the person is having - \nSelect and explain. \nA. Arsenic poisoning, B. Lead poisoning, C. Mercury poisoning, D. Cadmium poisoning', 'role': 'user'}, {'content': "Answer: A \nExplanation: The man in question has :\n\n(i) Paresthesia of hands and feet\n(ii) Raindrop pigmentation\n(iii) Hyperkeratosis of palm\xa0\xa0\xa0\xa0\n(iv) Transverse lines on the nail (mees'\xa0line)\n\nAll are seen in arsenic poisoning.", 'role': 'assistant'}]