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: Medicine
[{'content': 'Naming component of speech is impaired in all of the following types of aphasia except \nSelect and explain. \nA. Broca’s aphasia, B. Wernicke’s aphasia, C. Isolation aphasia, D. Pure alexia', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Naming is intact in pure word blindness and\xa0pure word deafness', 'role': 'assistant'}]