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': 'The roof of the olfactory region is formed by? \nSelect and explain. \nA. Nasal hone, B. Cribriform plate of ethmoid, C. Sphenoid, D. Temporal bone', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Roof of olfactory region of nasal cavity is formed by cribriform plate of ethmoid boneQ.Other bones paicipating in non- olfactory roof formation are body of sphenoid, frontal bone, nasal bone and nasal cailages.', 'role': 'assistant'}]