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
Essential atrophy of choroid is due to inborn error of metabolism of amino acid: 
Select and explain. 
A. Cystine, B. Cysteine, C. Arginine, D. Ornithine E Lysine
D: Ornithine E Lysine
Answer: D: Ornithine E Lysine 
Explanation: Ans. Ornithine E Lysine