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': 'Skull consists of....bones \nSelect and explain. \nA. 20, B. 22, C. 24, D. 28', 'role': 'user'}, {'content': 'Answer: B \nExplanation: B i.e. 22', 'role': 'assistant'}]