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': 'Chalcosis is deposition of: September 2010, March 2013 \nSelect and explain. \nA. Iron, B. Calcium, C. Copper, D. Lead', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ans. C: Copper A deposit of fine paicles of copper in the lungs or other tissues is known as chalcosis.', 'role': 'assistant'}]