This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Head and neck, Subject name: Anatomy
Pharyngeal tonsil is lined by? 
Select and explain. 
A. Simple cuboidal epithelium, B. Pseudostratified columnar epithelium, C. Keratinizing stratefied squamous epithelium, D. Nonkeratinizing stratefied squamous epithelium
B: Pseudostratified columnar epithelium
Answer: B: Pseudostratified columnar epithelium 
Explanation: On the posterior wall of pharynx is a prominence, best marked in childhood, produced by a mass of lymphoid tissue, which is known as the pharyngeal tonsil.The pharyngeal tonsil is a single tonsil situated in the superior-- posterior poion of the pharynx. It is covered by ciliated pseudostratified columnar epithelium. Ref: Anatomy of the Human Body Henry Gray.