This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Inorganic Irritants, Subject name: Forensic Medicine
[{'content': 'PICA is associated with poisoning of - \nSelect and explain. \nA. Lead, B. Arsenic, C. Mercury, D. Phosphorus', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Leado Pica involves repeated or chronic ingestion of non-nutritive substances, which includes plaster, charwal, clay, wool, ashes, patent & earth.o It can result in serious health problems like iron deficiency anemia and lead poisoning.", 'role': 'assistant'}]