This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Neuro Ophthalmology, Subject name: Ophthalmology
[{'content': 'Not true regarding optic chiasma: \nSelect and explain. \nA. Lies over tuberculum, B. Tumor over chiasma can lead to visual field defects, C. Decussation of visual pathway takes place over chiasma, D. Inferonasal fibres are related to posterior poion of chiasma', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Inferonasal fibres are related to anterior poion of chiasma. Optic Chiasma Lies over tuberculum. Tumor over chiasma can lead to visual field defects. Decussation of visual pathway takes place over chiasma for nasal fibres from retina. Inferonasal fibres are related to anterior poion of chiasma whereas superonasal fibres are related to posterior poion of chiasma.', 'role': 'assistant'}]