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': 'All of the following have no lymphatics, except - \nSelect and explain. \nA. Brain, B. Internal ear, C. Cornea, D. Liver', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ans - D', 'role': 'assistant'}]