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: Unknown
[{'content': 'The cartilage of A is: \nSelect and explain. \nA. Fibrous, B. Elastic, C. White fibro-cartilage, D. Hyaline', 'role': 'user'}, {'content': 'Answer: B \nExplanation: The epiglottis is a leaf shaped elastic cartilage situated behind the root of tongue.', 'role': 'assistant'}]