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: Pathology
[{'content': 'True about plumbism is: \nSelect and explain. \nA. Occurs due to lead poisoning, B. Burtonian line is seen, C. Peripheral neuritis is a marked feature, D. All of the above', 'role': 'user'}, {'content': "Answer: D \nExplanation: Lead poisoning (plumbism) occurs chiefly as an occupational hazard today, but occasionally occurs because of\xa0some other accidental exposure of either an acute or chronic nature.\nThe formation of a 'lead line' similar to the 'bismuth line' occurs in lead poisoning. This grey or bluish black line of sulphide pigmentation occurs in the gingiva, but is somewhat more diffuse than that of bismuth.\nLead intoxication is manifested by serious gastrointestinal disturbances which include nausea, vomiting, colic, and constipation.\xa0A peripheral neuritis also develops which may produce the characteristic wrist-drop or foot-drop. Encephalitis may also occur.\xa0Blood changes are those of hypochromic anaemia with basophilic stippling of the red blood cells. Skeletal changes due to deposition of lead in growing bone occur in children and are demonstrable on the radiograph.\nReference: Shafer’s Textbook of ORAL PATHOLOGY Eighth Edition page no 691,692", 'role': 'assistant'}]