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': 'In majority of the cases with otosclerosis the tympanic membrane is: \nSelect and explain. \nA. Normal, B. Flamingo-pink, C. Blue, D. Yellow', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. is a i.e. Normal', 'role': 'assistant'}]