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: ENT
[{'content': 'Syndrome associated with anosmia is: \nSelect and explain. \nA. Goldenhar syndrome, B. Kallmann syndrome, C. Prader Willi syndrome, D. All of the above', 'role': 'user'}, {'content': 'Answer: B \nExplanation: The most well-known type of congenital anosmia is Kallmann syndrome, an X-linked disorder. Caused by mutation in the KAL gene, Kallmann syndrome is characterized by hypogonadotropic hypogonadism, which results when olfactory receptor neurons and neurons synthesizing gonadotropin-releasing hormone fail to migrate from the olfactory placode.', 'role': 'assistant'}]