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: Anatomy
[{'content': 'Third nerve palsy causes all except \nSelect and explain. \nA. Ptosis, B. Miosis, C. Outward eye movement, D. Diplopia', 'role': 'user'}, {'content': 'Answer: B \nExplanation: CN III palsy will cause diplopia not miosis.', 'role': 'assistant'}]