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': 'Monocular diplopia with homonymous hemianopia originates in the: \nSelect and explain. \nA. Geniculate body, B. Calcarine coex, C. Parietal lobe, D. Temporal lobe', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. Calcarine coex', 'role': 'assistant'}]