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: Ophthalmology
[{'content': 'In chalcosis bulbi the electrolytically dissociated ions of copper are: \nSelect and explain. \nA. Deposited under the membraneous structures of the eye, B. Combine with intracellular proteins and produce degenerative changes, C. Produce irritative reaction at the local site, D. All of the above', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. Deposited under the membraneous structures of the eye', 'role': 'assistant'}]