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: Psychiatry
[{'content': "Which of the following Autism spectrum disorders has normal IQ and language skills? \nSelect and explain. \nA. Rett's syndrome, B. Asperger's syndrome, C. Heller's syndrome, D. Munchausen syndrome", 'role': 'user'}, {'content': "Answer: B \nExplanation: Asperger's syndrome does not have any language disturbances & mental retardation.", 'role': 'assistant'}]