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
The given histological specimen is 
Select and explain. 
A. Urethra, B. Vermiform appendix, C. Vas deferens, D. Stenson's duct
B: Vermiform appendix
Answer: B: Vermiform appendix 
Explanation: None