This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Kidney, Subject name: Medicine
Distal renal tubular acidosis is associated with- 
Select and explain. 
A. oxalate stones, B. Citrate, C. Calcium stones, D. Uric acid stones
C: Calcium stones
Answer: C: Calcium stones 
Explanation: In distal A - Most patients have hypocitrauria Hypercalciuria,so nephrolithiasis ,nephrocalcinosis and bone disease are common. Ref:Harrison 20 th edition pg no 320.