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: Anatomy
[{'content': 'Which of the following is not true regarding metopic suture? \nSelect and explain. \nA. It is present in all individuals, B. It is seen in norma verticalis, C. It separates frontal bones, D. It lies in median plane', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Metopic suture. This is occasionally present in about 3 to 8% individuals. It lies in the median plane\xa0and separates the two halves of the frontal bone.', 'role': 'assistant'}]