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': 'All statements are true about papilloedema except: \nSelect and explain. \nA. Collection of extra-cellular fluid, B. Disruption of neurofilament, C. Stasis of axoplasmic transpo, D. Swelling of the axon', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. Disruption of neurofilament', 'role': 'assistant'}]