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
All are derived from mesonephric duct, except: 
Select and explain. 
A. Vas deferens, B. Ureter, C. Trigone of urinary bladder, D. Prostatic utricle
D: Prostatic utricle
Answer: D: Prostatic utricle 
Explanation: Prostatic utricle