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': 'In cranial synostosis scaphyocephaly there is premature closure of which suture ? \nSelect and explain. \nA. Sagittal suture, B. Coronal suture, C. Lamdoid suture, D. All above', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]