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
"Wire loop lesion" in kidney are pathognomonic of which of the following conditions? 
Select and explain. 
A. Amyloidosis, B. Systemic lupus erythematosis, C. Good pasture syndrome, D. Diabetic nephropathy
B: Systemic lupus erythematosis
Answer: B: Systemic lupus erythematosis 
Explanation: Lupus nephritis showing a glomerulus with several "wire-loop" lesions representing extensive subendothelial deposits of immune complexes (periodic acid-Schiff stain). Ref: ROBBINS BASIC PATHOLOGY 10th ed Pg no: 155