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
[{'content': 'Distal renal tubular acidosis is associated with: \nSelect and explain. \nA. Oxalate stones, B. Citrate, C. Calcium stones, D. Uric acid stones', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Answer is C (Calcium Stones): Distal Renal Tubular Acidosis is associated with increased in cadence of Calcium Phosphate Stones Alkaline urine, Hypercalciuria and low levels of urinary citrate precipitate calcium phosphate stones in the kidney in patients with Distal Renal Tubular Acidosis (Typel). Proximal Renal Tubular Acidosis (Type-2) is not associated with increased incidence of Renal Stones despite Hypercalciuria because urinary citrate levels are normal or high.', 'role': 'assistant'}]