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 agenesis is due to \nSelect and explain. \nA. Defect in ascent of metanephron, B. Defective formation of nephritic tissue, C. Defect of the ureteric bud and mesonephros, D. All of the above', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Development of Kidney: Secretory pa of kidney:derived from metanephrons/metanephric blastyma Collecting pa of kidney:derived from ureteric bud', 'role': 'assistant'}]