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: ENT
[{'content': "Which of the following is false about tympanic membrane? \nSelect and explain. \nA. Cone of light is anteroinferior, B. Shrapnell's membrane is also known as pars flaccida, C. Healed perforation has three layers, D. Anterior malleolar fold is longer than posterior", 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]