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
One of the following is NOT a sign of diabetic retinopathy – 
Select and explain. 
A. Microaneurysms, B. Cotton wool spots, C. Hard exudates, D. Choroidal neovascularization
D: Choroidal neovascularization
Answer: D: Choroidal neovascularization 
Explanation: There is retinal neovascularization (not choroidal).