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': 'Essential atrophy of choroid is due to inborn error of metabolism of amino acid: \nSelect and explain. \nA. Cystine, B. Cysteine, C. Arginine, D. Ornithine E Lysine', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ans. Ornithine E Lysine', 'role': 'assistant'}]