This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Urinary tract, Subject name: Pathology
[{'content': 'Flea bitten appearance of the kidney is seen in- \nSelect and explain. \nA. Malignant hypeension, B. Benign hypeension, C. Chronic pyelonephritis, D. Diabetes mellitus In an adult', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Causes of the flea-bitten kidney: Malignant hypeension Subacute bacterial endocarditis Rapidly progressive GN Henoch-Schonlein purpura. Ref: RAM DAS NAYAK EXAM PREPARATORY MANUAL FOR UNDERGRADUATES 2nd ed. pg no: 621', 'role': 'assistant'}]