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: Anatomy
[{'content': 'Which of the following structure is made up of elastic cailage? \nSelect and explain. \nA. Auditory tube, B. Nasal septum, C. Costal cailage, D. Aicular cailage', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Cailage is a form of connective tissue in which cells and fibers are embedded in a gel like matrix. Elastic cailage has large number of elastic fibers embedded in the matrix. It is very flexible and is found in the auditory tube, auricle of ear, external auditory meatus, epiglottis and the cuneiform cailage in the larynx.', 'role': 'assistant'}]