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: Medicine
All of the following are examples of tubulointerstitial disorder of the kidney except - 
Select and explain. 
A. Hypercalcemic nephropathy, B. Lupus nephritis, C. Gouty mephropathy, D. Hypokalemic nephropathy
B: Lupus nephritis
Answer: B: Lupus nephritis 
Explanation: None