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 weakest at the level of: \nSelect and explain. \nA. Macula, B. Equator, C. Inseion of extraocular muscles, D. Ora serrata', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ans. Inseion of extraocular muscles', 'role': 'assistant'}]