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': 'Ossicles of middle ear are responsible for which of the following ? \nSelect and explain. \nA. Amplification of sound intensity, B. Reduction of sound intensity, C. Protecting the inner ear, D. Reduction of impedance to sound transmission', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]