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': 'Parietal lobe tumours may be associated wit) \nSelect and explain. \nA. Crossed lower homonymous quadrantano, B. Crossed upper homonymous quadrantano, C. Both of the above, D. None of the above', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. Crossed lower homonymous quadrantano', 'role': 'assistant'}]