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': 'Sclera is thinnest at: \nSelect and explain. \nA. Posterior pole, B. Equator, C. Corneoscleral junction, D. Points of muscular attachments', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ans. Points of muscular attachments', 'role': 'assistant'}]