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: Surgery
[{'content': 'Schneiderian membrane is: \nSelect and explain. \nA. Stratified squamous epithelium., B. Pseudostratified cilliated columnar epithelium., C. Stratified columnar epithelium., D. Stratified cilliated columnar epithelium.', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]