This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Respiratory System (Histology), Subject name: Anatomy
Trachea is lined by? 
Select and explain. 
A. Simple columnar, B. Pseudostratified columnar, C. Simple cuboidal, D. Stratified squamous, non-keratinized
B: Pseudostratified columnar
Answer: B: Pseudostratified columnar 
Explanation: Ans. (b) Pseudostratified columnar