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 conditions are observed in Gout.except - 
Select and explain. 
A. Uric acid nephrolithiasis, B. Deficiency of enzyme xanthine oxidase, C. Increase is serum urate concentration, D. Renal disease involving interstitial tissues
B: Deficiency of enzyme xanthine oxidase
Answer: B: Deficiency of enzyme xanthine oxidase 
Explanation: None