This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Anatomy of External Ear & Pinna, Subject name: ENT
[{'content': 'Features of moderately retracted tympanic membrane are all except: \nSelect and explain. \nA. Handle of malleus appearance foreshortened, B. Cone of light is absent or interrupted, C. Lateral process of malleus becomes more prominent, D. Shiny pearly grey tympanic membrane', 'role': 'user'}, {'content': 'Answer: D \nExplanation: (d) Shiny pearly grey tympanic membrane(Ref. Dhingra, 6th ed., 55)Retracted tympanic membrane appears dull and lustreless due to absent or interrupted cone of light.', 'role': 'assistant'}]