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
The most common cause of vitreous hemorrhage in adults is – 
Select and explain. 
A. Retinal hole, B. Trauma, C. Hypertension, D. Diabetes
D: Diabetes
Answer: D: Diabetes 
Explanation: "Diabetic retinopathy is the commonest cause of spontaneous vitreous hemorrhage in adults". ____ Parson's
"Most common cause of vitreous hemorrhage is diabetic retinopathy in adults".  — Atlas of ophthalmology