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': 'Nasal Septum is formed by: \nSelect and explain. \nA. Perpedicular plate of ethmoid, B. Crest of maxilla, C. Septal cailage, D. All', 'role': 'user'}, {'content': 'Answer: D \nExplanation: B. i.e. Crest of maxilla; C. i.e. Septal cailage; A. i.e. Perpendicular plate of ethmoid', 'role': 'assistant'}]