This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General anatomy, Subject name: Anatomy
[{'content': 'Renal parenchyma derived embryologically from? \nSelect and explain. \nA. Pronephros, B. Metanephros, C. Mesompehros, D. Cloaca', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Development of Kidney: Secretory pa of kidney:derived from metanephrons/metanephric blastyma Collecting pa of kidney:derived from ureteric bud', 'role': 'assistant'}]