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
Pseudostratified columnar epithelium is present in: 
Select and explain. 
A. Esophagus, B. Vas deferens, C. Cornea, D. Thyroid
B: Vas deferens
Answer: B: Vas deferens 
Explanation: Columnar epitheliumCiliated pseudostratified columnar epithelia are found in the lines of the trachea as well as the upper respiratory tract.Non-ciliated pseudostratified columnar epithelia are located in the membranous pa of male vas deferens.Pseudostratified columnar epithelia with stereocilia are located in the epididymis.