This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Development of GU system and Neuro-vascular supply of pelvis & perineum, Subject name: Anatomy
[{'content': 'Ureter develops from \nSelect and explain. \nA. Pronephros, B. Metanephros, C. Mesonephros, D. Mesonephric duct', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]