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
A 40 year old diabetic male present with vitrous haemorrhage. Most impoant cause for it is 
Select and explain. 
A. Poterior vitreous detachment, B. CRVO, C. CRA trauma, D. Neovascularization of disc
D: Neovascularization of disc
Answer: D: Neovascularization of disc 
Explanation: D i.e. Neovascularization of disc