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': "Enlarging dot sign in fundus fluorescein scanning is seen in – \nSelect and explain. \nA. Cystoid macular edema, B. Central serous retinopathy, C. Significant macular edema, D. Coat's disease", 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ink- blot sign or enlarging dot sign is seen in central serous retinopathy', 'role': 'assistant'}]