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': 'Heterochromia iridis is a feature of: \nSelect and explain. \nA. Malignant melanoma of iris, B. Sympathetic paralysis, C. Glaucomatocyclitis crisis, D. All of the above', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ans. All of the above', 'role': 'assistant'}]