This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Lid, Subject name: Ophthalmology
[{'content': 'Ptosis results from trauma to which nerve \nSelect and explain. \nA. VII, B. VIII, C. III, D. VI', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c' i.e. III C.N. Palsy of Levator palpebrae superioris supplied by III C.N. results in ptosis.", 'role': 'assistant'}]