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: Medicine
[{'content': 'Which of the following tissue deposits is called chalcosis \nSelect and explain. \nA. Copper, B. Cadmium, C. Chromium, D. Aluminum', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Copper Chalcosis refers to the deposition of copper in the tissues. Chalcosis is a term used to describe the deposition of the copper (Cu) in the tissues especially tissues of the eyes. Chalocosis in occular tissues generally occurs from the presence of a copper foreign body within the eye", 'role': 'assistant'}]