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
[{'content': 'Sperm acquires motility in - \nSelect and explain. \nA. Seminal vesicle, B. Testes, C. Epididymis, D. Ejaculatory duct', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]