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': 'Chronic arsenic poisoning causes -a) Pure sensory neuropathyb) Pure motor neuropathyc) Mixed sensory and motor neuropathyd) Painful neuropathye) Hyperkeratosis of skin \nSelect and explain. \nA. abd, B. acd, C. bde, D. cde', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Arsenic causes mixed (sensory and motor) neuropathy and hyperkeratosis of palm and sole.\nNeuropathy may cause\xa0painful paresthesia (i.e. painful neuropathy).', 'role': 'assistant'}]