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': 'Which layer of Retina continues as optic nerve \nSelect and explain. \nA. Ganglionic cell layer, B. Nerve fibre layer, C. Internal limiting layer, D. External limiting layer', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Nerve fibre layer continues as optic nerve.', 'role': 'assistant'}]