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 result in renal agenesis except : \nSelect and explain. \nA. Nephrogonic bud, B. Ureteric bud, C. Blartema of nephrogenic tissue, D. Failure of descent of kidney into lumbar region', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Kidney arcent from sacral region to lumbar region excreting component derival from metanephric blastema.', 'role': 'assistant'}]