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: Pathology
[{'content': 'Cylindrical dilatation of renal tubules is seen in ? \nSelect and explain. \nA. Polycystic disease of kidney, B. Medullary cystic disease, C. Wilms tumour, D. Lipoid nephrosis', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Polycystic disease of kidney", 'role': 'assistant'}]