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: Pathology
[{'content': 'All of the following are the classical presentation of Cranioverebral junction anomalies except \nSelect and explain. \nA. Pyramidal signs, B. Low hairline, C. Sho neck, D. Pupillary asymmetry', 'role': 'user'}, {'content': 'Answer: D \nExplanation: . Pupillary asymmetry', 'role': 'assistant'}]