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': 'Commonest type of Retinal detachment – \nSelect and explain. \nA. Rhegmatogenous, B. Choroidal hemorrhage, C. Exudative, D. Tractional', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Rheugmatogenous retinal detachment is the most common type of retinal detachment.', 'role': 'assistant'}]