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': 'Drug not deposited in cornea: \nSelect and explain. \nA. Gold, B. Chloroquine, C. Amiodarone, D. Antimony', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ans. Antimony', 'role': 'assistant'}]