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': "Muscle in the lid attached to posterior tarsal margin is: \nSelect and explain. \nA. Levator palpebrae superioris, B. Superior oblique, C. Muller's muscle, D. Superior rectus", 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. Muller's muscle", 'role': 'assistant'}]