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': 'Vitreous hemorrhage in young patient is commonly due to: September 2011 \nSelect and explain. \nA. Diabetes, B. Retinal tears, C. Trauma, D. Retinal vasculitis', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ans. C: Trauma Trauma is the commonest cause of vitreous hemorrhage in the young', 'role': 'assistant'}]