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
Maxillary sinus epithelium is made of ? 
Select and explain. 
A. Pseudostratified columnar, B. Ciliated columnar, C. Simple columnar, D. Stratified squamous non-keratinized
B: Ciliated columnar
Answer: B: Ciliated columnar 
Explanation: Ans. is'b'i.e., Ciliated columnarLining epithelium of paranasal sinuses is ciliated columnar with goblet cells.