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': 'Defect in any of the following may result in renal agenesis except - \nSelect and explain. \nA. Nephrogenic bud, B. Ureteric bud, C. Blastema of nephrogenic tissue, D. Failure of descent of nephrogenic tissue to lumbar area', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]