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
Sperm acquires motility in - 
Select and explain. 
A. Seminal vesicle, B. Testes, C. Epididymis, D. Ejaculatory duct
C: Epididymis
Answer: C: Epididymis 
Explanation: None