This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Vascular Disorders, Subject name: Ophthalmology
[{'content': 'Tomato ketchup retina is seen in - \nSelect and explain. \nA. Cental retinal artery occlusion, B. Central retinal vein occlusion, C. Coats disease, D. Side cell retinopathy', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e. Central retinal vein occlusion o Tomato ketchup or splash tomato fundus is seen in central retinal vein occlusion.", 'role': 'assistant'}]