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 are seen in 3\nrd \nnerve palsy except- \nSelect and explain. \nA. Ptosis, B. Diplopia, C. Miosis, D. Outward deviation of eye', 'role': 'user'}, {'content': 'Answer: C \nExplanation: 3rd nerve paralysis causes mydriasis (not miosis).\nThere is ptosis (due paralysis of levator palpabrae superioris), diplopia (due to extraocular muscle paralysis), and outward deviation of eye (due to active lateral rectus).', 'role': 'assistant'}]